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All Journal HAYATI Journal of Biosciences Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Hortikultura Indonesia (JHI) Teknotan: Jurnal Industri Teknologi Pertanian Jurnal Keteknikan Pertanian Jurnal Keteknikan Pertanian Tropis dan Biosistem Journal of Mathematical and Fundamental Sciences Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Indonesian Journal of Electrical Engineering and Computer Science Journal of Contemporary Administration and Management (ADMAN)
Herry Suhardiyanto
Department Of Mechanical And Biosystem Engineering, Faculty Of Agricultural Engineering And Technology, IPB University, Bogor, Indonesia
Agriculture, Biological Sciences & Forestry Astronomy Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Mathematics Mechanical Engineering Physics Social Sciences Other

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ANALlSIS PINDAH PANAS PADA PENDINGINAN DALAM TANAH UNTUK SISTEM HIDROPONIK Herry Suhardiyanto; Muhammad Maftuh Fuadi; Yeni Widaningrum
Jurnal Keteknikan Pertanian Vol. 21 No. 4 (2007): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.021.4.%p

Abstract

ABSTRACTZone cooling is used in greenhouses to maintain the area surrounding the plants at a level of temperature that is not too high and can be tolerated by the plants, even though air temperature inside the greenhouse rises some degrees above the temperetute level of outside air. Cooling the root zone by distributing the cooled nutrient solution is one of the most effective methods of zone cooling. In this experiment, ground environment with a relatively low temperature has been used to reduce the temperature of nutrient solution by placing trio nulriont solution tank in ebout 7 m depth under the ground (surface) It has been shown that tne method was efficient in energy use, because It need only energy for pumping the water from the depth to the floor level through a vertical pipe. Temperature of nutrient solution flowing out from the emitter with the tank placed under the ground (surface) could be maintained 0.1 to 1.9 °C lower than that sourced from tank placed at floor level. A heat transfer model has been developed to prodict the nutrient solution temperature flowing out from the vertical pipe. It has been shown that the predicted temperature of nutrient solution agreed well with that of the measured temperatures. Keywords: drip Irrigation system, heat transfer analysis, ground cooling. Diterima: 11 Agustus 2007; Disetujui: 3 Nopember 2007  
RESEARCH ON GREENHOUSE APPLICATION IN THE TROPICS Herry Suhardiyanto; Yayu Romdhonah
Jurnal Keteknikan Pertanian Vol. 21 No. 4 (2007): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.021.4.%p

Abstract

ABSTRACTStudies on greenhouse technology for tropical conditions show significant progress in the last decade. Several concepts of adapted greenhouse structure heve been proposed by scientists in ordor to provide optimum environment for the growing plants inside, This paper reviews on some studies concentrated on Improving the performance of greenhouse structure for tropical conditions. It presents some information on the design. material selection and the construction of several proposed greenhouses. It is hoped to give helpful information for future research as well as be implemented in commercial greenhouses In the tropics Keywords: greenhouse. natural ventilation. structural design, tropics. Diterima: 17 September 2007; Disetujui: 28 Oktober 2007 
Pengembangan Sistem Hidroponik untuk Budidaya Tanaman Kentang (Solanum tuberosum L.) Yohanes Bayu Suharto; Herry Suhardiyanto; Anas Dinurrohman Susila
Jurnal Keteknikan Pertanian Vol. 4 No. 2 (2016): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2885.403 KB) | DOI: 10.19028/jtep.04.2.%p

Abstract

AbstractPotato cultivation in Indonesia is mostly carried out in upper land with steep slope that also contribute a significant portion in annual volume of eroded soil. Hydroponic system could be an effective method for potato cultivation while avoiding soil erosion. The objective of this research was to design a hydroponic system for potato cultivation. Computational Fluid Dynamic (CFD) simulation was used to describe the root zone temperature distribution in a hydroponic bed. Potatoes was grown in hydroponic systems with different treatment of Electrical Conductivity (EC) values of nutrient solution, i.e. 1.8 mS and 2.5 mS. CFD simulation was capable to describe the distribution of fluid temperature inside the hydroponic bed accurately with R2 value of 0.9837 and average error of 1.8%. Potato plants grown in hydroponic system performed well. It produced tubers although the root zone temperatures reached 30.4°C. Plants grown at EC value of nutrient solution 1.8 mS treatment produce the average number of tuber 4.3 tubers and average weight of tubers 77.2 g per plant. While that grown at nutrient solution with EC value of 2.5 mS produced the average number of tuber 4.6 tubers and average weight of tubers 60.0 g per plant. It was demonstrated that the hydroponic system could be used in potato cultivation for consumption tuber.AbstrakBudidaya kentang di Indonesia umumnya dilakukan pada lahan miring di dataran tinggi sehingga memberikan kontribusi yang signifikan terhadap erosi tanah. Budidaya dengan sistem hidroponik dapat menjadi salah satu metode yang efektif untuk budidaya kentang yang dapat menekan terjadinya erosi tanah. Tujuan dari penelitian ini adalah merancang sistem hidroponik untuk budidaya tanaman kentang. Simulasi Computational Fluid Dynamic (CFD) digunakan untuk menggambarkan distribusi suhu daerah perakaran pada bedeng tanaman. Tanaman kentang ditanam pada sistem hidroponik dengan dua perlakuan nilai Daya Hantar Listrik (DHL) larutan nutrisi yang berbeda, yaitu 1.8 mS dan 2.5 mS. Simulasi CFD mampu menggambarkan distribusi suhu daerah perakaran pada bedeng tanaman secara akurat dengan nilai R2 0.9837 dan rata-rata error sebesar 1.8%. Tanaman kentang dapat tumbuh dengan baik pada sistem hidroponik dan mampu menghasilkan umbi meskipun suhu daerah perakaran tanaman mencapai 30.4°C. Tanaman kentang yang ditanam dengan DHL larutan nutrisi 1.8 mS menghasilkan rata-rata jumlah umbi 4.3 umbi per tanaman dan rata-rata berat umbi 77.2 g per tanaman. Sementara tanaman kentang yang ditanam dengan DHL larutan nutrisi 2.5 mS menghasilkan rata-rata jumlah umbi 4.6 umbi per tanaman dan rata-rata berat umbi 60.0 g per tanaman. Hasil ini menunjukkan bahwa sistem hidroponik dapat digunakan dalam budidaya tanaman kentang untuk produksi kentang ukuran konsumsi.
Aplikasi Root Zone Cooling System Untuk Perbaikan Pembentukan Umbi Bawang Merah (Allium cepa var. aggregatum) Nurwahyuningsih .; Herry Suhardiyanto; Sobir .
Jurnal Keteknikan Pertanian Vol. 5 No. 2 (2017): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (772.975 KB) | DOI: 10.19028/jtep.05.2.%p

Abstract

Abstract The aim of this research can be formulated as follows: to analyze the effect of different root zone temperature to some extent the temperature is 10oC, 15oC, control and vernalization of plant growth and the formation of shallot bulbs by using aeroponic system. The experimental design used was a draft Plots Divided (Split Plot Design), which is arranged in a randomized block design with four replications. The main plot is a vernalization treatment (without vernalization and with vernalization). The subplots in the form of a nutrient solution temperature at 10oC, 15oC, and without cooling system as a control. The parameters measured were the number of leaves, the number of tillers, the number of bulbs, the weight of bulbs and the wet weight of root. There are no interaction between the annealing temperature by vernalization to the number of leaves, the bulb number, the weight of bulbs, and the weight of the roots. Cooling temperatures nutrient solution to improving root growth and bulb formation of shallot. Optimal root growth can improve nutrient uptaken by plants then can improve plant growth and bulb yield larger and heavier. Temperatures suitable for shallot cultivation in lowland tropical for producing tubers with quenching temperature is 10°C, non vernalization.Abstrak Tujuan pada penelitian ini dapat dirumuskan sebagai berikut: menganalisa pengaruh perbedaan suhu zona perakaran dengan beberapa taraf suhu yaitu 10oC, 15oC, kontrol dan vernalisasi terhadap pertumbuhan tanaman bawang merah dan pembentukan umbi dengan menggunakan aeroponik sistem. Rancangan percobaan yang digunakan adalah Rancangan Petak Terbagi (Split Plot Design), yang disusun dalam Rancangan Acak Kelompok dengan empat ulangan. Petak utama adalah perlakuan vernalisasi (tanpa vernalisasi dan dengan vernalisasi). Anak petak berupa suhu pendinginan larutan nutrisi 10oC, 15oC, dan tanpa pendinginan sebagai kontrol. Parameter yang diamati adalah jumlah daun, jumlah anakan, jumlah umbi, berat umbi, dan berat basah akar. Tidak terjadi interaksi antara suhu pendinginan dengan vernalisasi terhadap jumlah daun, jumlah umbi, bobot umbi, dan berat akar. Pendinginan suhu larutan nutrisi mampu meningkatkan pertumbuhan perakaran dan pembentukan umbi tanaman bawang merah. Pertumbuhan akar yang optimal mampu meningkatkan serapan unsur hara oleh tanaman yang dapat memperbaiki pertumbuhan tanaman, menghasilkan umbi yang lebih besar dan lebih berat. Suhu yang cocok untuk budidaya bawang merah didataran rendah tropika basah untuk memproduksi umbi adalah dengan pendinginan suhu 10oC, non vernalisasi.
Simulasi Distribusi Suhu pada Lubang Tanam Hidroponik Rakit Apung untuk Produksi Bawang Merah di Dataran Rendah Tropika Agus Ghautsun Niam; Herry Suhardiyanto; Kudang Boro Seminar; Akhiruddin Maddu
Jurnal Keteknikan Pertanian Vol. 5 No. 3 (2017): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2049.616 KB) | DOI: 10.19028/jtep.05.3.235-244

Abstract

Abstract This paper discusses the cooling effect of the root zone (the root zone cooling) at a floating hydroponic for the shallot production in tropical lowland by cooling the nutrient bath. The study was conducted at three different temperatures, i.e. low temperatures (8-10OC), medium temperature (13-15OC), and control (23-26OC) with variable responses that include wet weight, dry weight, number of bulbs and weight per bulb. Plant growth responses were analyzed using statistical methods Fisher's least significant difference (LSD), while the temperature distribution on a floating hydroponic was analyzed by computational fluid dynamics (CFD) simulation approach. CFD simulation approach was able to describe the temperature distribution on a floating hydroponic well, where the coefficients of determination (R2) for each treatment of low temperature, medium and controls are 0.983, 0.980 and 0.862 respectively. The results showed that the number of bulbs was the most responsive variable, where the induction of bulb formation at low temperature is more than 200% of the control temperature and more than 60% of the medium temperature.Abstrak Makalah ini membahas tentang efek pendinginan daerah perakaran (root zone cooling) pada hidroponik rakit apung untuk produksi bawang merah di dataran rendah tropika dengan pendinginan pada bak nutrient.Penelitian dilakukan dengan 3 suhu berbeda, yaitu pada suhu rendah (8-10OC), suhu sedang (13-15OC), dan kontrol (23-26OC) dengan variabel respon pertumbuhan tanaman bawang merah meliputi bobot basah, bobot kering, jumlah umbi dan bobot per umbi. Respon pertumbuhan tanaman dianalisis menggunakan metoda statistik Fisher's least significant difference (LSD), sedangkan distribusi suhu pada hidroponik rakit apung dianalisis melalui pendekatan simulasi computational fluid dynamics (CFD). Pendekatan simulasi CFD mampu menggambarkan sebaran suhu pada hidroponik rakit apung dengan baik dimana koefisien determinasi (R2) untuk masing-masing perlakuan dari suhu rendah, sedang dan kontrol berturut-turut sebesar 0.983, 0.980 dan 0.862. Hasil penelitian menunjukkan bahwa jumlah umbi merupakan variable yang paling responsif, dimana pada suhu rendah induksi pembentukan umbi bawang merah mencapai 200% lebih banyak dari pada suhu kontrol dan 60% lebih banyak dari suhu sedang.
Analisis Pindah Panas pada Pipa Pendingin untuk Root Zone Cooling System Nurbaiti Araswati; Herry Suhardiyanto; Mohamad Solahudin
Jurnal Keteknikan Pertanian Vol. 5 No. 3 (2017): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2422.443 KB) | DOI: 10.19028/jtep.05.3.253-260

Abstract

AbstractRoot zone cooling system is needed to alleviate high-temperature injury for high-yield greenhouse vegetables production. Analysis of heat transfer along the cooling pipe is very important in designing the root zone cooling system. The objectives of this research were (1) to analyze heat transfer in cooling pipe for zone cooling in a hydroponic system, (2) to validate the heat transfer dynamics model to predict the water temperature at the outlet of the cooling pipe, and (3) to perform model simulations for various types of pipe materials and lengths in several thermal conditions in the greenhouse. Root zone cooling system was performed by flowing water (10oC) through a steel pipe along 25 m to the root zone. The analysis showed a decrease up to 2.8oC in the planting medium temperature 28.6oC from control 31.4oC. The validation of heat transfer model was conducted by comparing the predicted water temperature to that of measured on linear regression plot. The result showed a straight line Y=1.0026X and the coefficient of determination (R2) 0.9867. Based on data analysis, the temperature of water reaches 1oC in steel and copper cooling pipes along 40 m and significantly different from the PVC that is 0.8oC. AbstrakRoot zone cooling system diperlukan dalam mengurangi kerusakan akibat tingginya suhu agar hasil produksi sayuran rumah tanaman meningkat. Analisis pindah panas di sepanjang pipa pendingin sangat penting dalam perancangan root zone cooling system. Tujuan penelitian ini adalah (1) melakukan analisis pindah panas pada pipa pendingin untuk zone cooling dalam sistem hidroponik, (2) melakukan validasi model dinamik pindah panas untuk memprediksi suhu air pada bagian outlet pipa pendingin, dan (3) melakukan simulasi model untuk berbagai bahan dan panjang pipa pada beberapa kondisi termal rumah tanaman. Root zone cooling system dilakukan dengan mengalirkan air (10oC) melalui pipa steel sepanjang 25 m ke perakaran tanaman. Hasil analisis menunjukkan adanya penurunan suhu media tanam hingga 2.8oC yaitu 28.6oC dari suhu kontrol 31.4oC. Validasi model pindah panas dilakukan dengan membandingkan angka suhu air hasil prediksi dengan hasil pengukuran dalam grafik regresi linear. Hasil validasi model pindah panas didapatkan garis lurus Y=1.0026X dan koefisien determinasi (R2) 0.9867. Berdasarkan analisis data, kenaikan suhu air mencapai 1oC pada pipa pendingin steel maupun tembaga sepanjang 40 m dan berbeda nyata dengan PVC yaitu 0.8oC
Sebaran Suhu pada Sistem Hidroponik Substrat dengan Pendinginan Terbatas Daerah Perakaran Nurul Choerunnisa; Herry Suhardiyanto; Leopold Oscar Nelwan
Jurnal Keteknikan Pertanian Vol. 6 No. 3 (2018): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1664.512 KB) | DOI: 10.19028/jtep.06.3.233-240

Abstract

AbstractHigh environment temperature in humid tropical lowland can cause vary physiological problems for plants. Zone cooling system for substrate hydroponics was built to maintain root zone temperature of the plants. The objective of this research was to predict temperature distribution in substrate hydroponicssystem root zone with root zone cooling which is important parameter in evaluating root zone cooling system. The distribution of root zone temperature was simulated using computational fluid dynamics (CFD) approach. The simulation result showed uniformed temperature distribution in the planting medium for hydroponic substrate with minimum, maximum, and average temperature of 12.60oC, 39.90oC, and32.00oC, respectivelly. The comparison between simulated and measured root zone temperature using linear regression analysis resulted in gradient value of 1.01, coefficient of intercept value of 0.39, and coefficient of determination value of 0.98. Hence, the developed simulation model with CFD approach can be used to predict root zone temperature of substrate hydroponics system with root zone cooling.AbstrakSuhu lingkungan yang tinggi di dataran rendah tropika basah dapat mengakibatkan berbagai masalah fisiologis pada tanaman. Sistem pendinginan terbatas untuk hidroponik substrat telah dibangun untuk menjaga suhu daerah perakaran tanaman. Tujuan dari penelitian ini adalah untuk memprediksi sebaran suhu daerah perakaran pada sistem hidroponik substrat dengan pendinginan terbatas daerah perakaran yang merupakan parameter penting dalam mengevaluasi sistem pendinginan terbatas daerah perakaran. Sebaran suhu daerah perakaran tanaman disimulasikan dengan menggunakan pendekatan computational fluid dynamics (CFD). Hasil simulasi menunjukkan sebaran suhu media tanam yang tidak seragam dengan suhu minimum, maksimum, dan rata-rata secara berurutan sebesar 12.60oC, 39.90oC, dan 32.00oC. Perbandingan antara suhu daerah perakaran hasil simulasi dan pengukuran dengan analisis regresi linear menghasilkan nilai gradien sebesar 1.01, nilai koefisien intersep sebesar 0.39, dan koefisien determinasi sebesar 0.98. Oleh karena itu, model simulasi dengan pendekatan CFD yang telah dikembangkan dapat digunakan untuk memprediksi sebaran suhu daerah perakaran sistem hidroponik substrat dengan pendinginan terbatas daerah perakaran.
Sebaran Suhu Daerah Perakaran pada Sistem Hidroponik untuk Budidaya Tanaman Cabai di Kawasan Tropika Wenny Amaliah; Herry Suhardiyanto; Muhamad Syukur
Jurnal Keteknikan Pertanian Vol. 7 No. 1 (2019): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1060.013 KB) | DOI: 10.19028/jtep.07.1.25-32

Abstract

AbstractChili production in Indonesia is very unstable because most of chili production areas are open field that are quite influenced by weather. Therefore, it is important to develop hydroponic technology for chili cultivation under greenhouse. As energy-efficient cooling system for tropical greenhouses, root zone cooling could be applied by flowing cooled water in pipes that are burried in the root zone. Determining the space between the pipes for flowing the cooled water requires temperature distribution in the root zone. The objective of this research were to find out the temperature distribution in the root zone, to simulate temperature distribution with based on computational fluid dynamics, and to validate the simulated root zone temperature. The results showed that an uniform horizontal temperature distribution during the day time and night time. Uniform verticaltemperature distribution were also noted during the night time. There were quite wide temperature variation in the root zone during the day time, vertically. The validation results showed that temperature distribution in the root zone could be predicted accurately by computational fluid dynamics as indicated by the value of R2 obtained at 0.84 and the linear equation is y axis approaches the value of x axis. Therefore, the predicted temperature distribution would be very useful in determining zone cooling system for chili cultivation in hydroponic system under tropical greenhouse.AbstrakProduksi cabai di Indonesia sangat tidak stabil karena sebagian besar areal budidaya tanaman cabai dilakukan di lahan terbuka yang sangat dipengaruhi oleh cuaca. Oleh karena itu, penting untuk mengembangkan teknologi hidroponik untuk budidaya tanaman cabai di dalam rumah tanaman. Metode pendinginan yang efisien dari segi konsumsi energi untuk rumah tanaman di daerah tropika salahsatunya adalah pendinginan daerah perakaran. Pendinginan daerah perakaran dapat diterapkan dengan mengalirkan air dingin di dalam pipa yang dibenamkan dalam daerah perakaran tersebut. Penentuan jarak antar pipa pendingin tersebut memerlukan sebaran suhu di daerah perakaran tersebut. Tujuan daripenelitian ini adalah untuk memprediksi sebaran suhu daerah perakaran, melakukan simulasi suhu daerah perakaran menggunakan computational fluid dynamics, dan melakukan validasi hasil simulasi sebaran suhu daerah perakaran. Hasil penelitian menunjukkan bahwa sebaran suhu daerah perakaran secara horizontal ternyata seragam pada waktu siang maupun malam hari. Data sebaran suhu daerah perakaran yang seragam secara vertikal juga diperoleh pada waktu malam hari. Sebaran suhu daerah perakaran secara vertikal pada siang hari ternyata cukup bervariasi. Validasi menunjukkan bahwa sebaran suhu daerah perakaran dapat diprediksi dengan baik menggunakan computational fluid dynamics yang ditunjukkan dengan nilai R2 yang diperoleh sebesar 0.84 dan diperoleh persamaan y yang mendekati nilai x. Oleh karena itu, suhu daerah perakaran hasil prediksi dapat digunakan untuk perancangan zone cooling system budidaya tanaman cabai secara hidroponik di dalam rumah tanaman.
Optimization of EC Values of Nutrient Solution for Tomato Fruits Quality in Hydroponics System Using Artificial Neural Network and Genetic Algorithms Herry Suhardiyanto; Chusnul Arif; Budi I. Setiawan
Journal of Mathematical and Fundamental Sciences Vol. 41 No. 1 (2009)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.sci.2009.41.1.3

Abstract

Total soluble solids (TSS) and fruit fresh weight are two indicators to show the quality of tomato fruits. To gain high values of TSS and fruit fresh weight, it is important to consider the concentration of nutrient solution, which is commonly represented by Electrical Conductivity (EC) value. Generally, the increasing of EC value not only increases the number of TSS, but also decreases fruit fresh weight. Therefore, it is important to optimize the EC value for both indicators of quality of tomato fruits. The objective of this research is to optimize the EC value of nutrient solution on each generative stage using Artificial Neural Network (ANN) and Genetic Algorithms (GA). ANN was used to identify the relationship between different EC value treatments with TSS value and fruit fresh weight. GA was applied to determine the optimal EC value in generative growth, which is divided into three stages. Results showed that the optimal EC values in the flowering stage, the fruiting stage and the harvesting stage were 1.4 mS/cm, 10.2 mS/cm and 9.7 mS/cm, respectively.
Optimal sensor location for adaptive control system in tropical smart greenhouse Folkes Eduard Laumal; Herry Suhardiyanto; Mohamad Solahudin; Slamet Widodo
Indonesian Journal of Electrical Engineering and Computer Science Vol 30, No 3: June 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v30.i3.pp1449-1457

Abstract

The uniform control in greenhouse with technology capabilities is seemingly still difficult to be obtained due to the accuracy uncertainty of the data in certain locations. Considering this case, it is highly necessary to choose the right location for the sensor installation. This study aimed to determine sensor placement locations to support precision control activities, using an arch-type smart greenhouse measuring 8×24 m2 as the research location. Air temperature was calculated from 12 locations and analyzed for all possible combinations to designate the best sensor point according to the number of sensors. The analysis was conducted using the error-based method to ascertain the number and location of sensors that represent the smart greenhouse. The best location and number of sensors are identified with performance value under 10% and recommended for developing an adaptive control system.
Co-Authors , Suroso Agus Ghautsun Niam Akhiruddin Maddu Amaliah, Wenny Anas Dinurrohman Susila Arief Sudarmaji, Arief Aris Purwanto Budi I. Setiawan Budi lndra Setiawan Chusnul Arief Chusnul Arif Drupadi Ciptaningtyas Eni Sumarni Eni Sumarni Eni Sumarni Eni Sumarni Erizal , Erizal -, Erizal Erniati Erniati Erniati Erniati Erniati Erniati Eti Rohaeti Eti Rohaeti Fiendy Chrisfian Folkes Eduard Laumal Folkes Laumal Folkes Laumal folkes laumal, folkes Hakim, Dedi Budiman Iin Sundani Muliawati Iqbal Zaqlul Irmanida Batubara Jayawarsa, A.A. Ketut Kudang B. Seminar Kudang Boro Seminar Lenni Lenni Meiske Widyarti Messaline, Theressa Mohamad Solahudin Muhamad Syukur Muhammad Maftuh Fuadi Nelwan, Leopold Oscar Nurbaiti Araswati Nurul Choerunnisa Nurul Choerunnisa, Nurul Nurwahyuningsih Nurwahyuningsih Radite P. A. Setiawan Rokhani Hasbullah Satyanto Krido Saptomo Shadila Fira Asoka Shadila Fira Asoka Slamet Widodo Slamet Widodo Slamet Widodo Slamet Widodo Sobir Sobir Solihati, Garin Pratiwi Suharto, Yohanes Bayu Sumini . Supriyanto Supriyanto Supriyanto Supriyanto Supriyanto Supriyanto Suroso Suroso Susila, Anas Dinurroman TAKAHISA MATSUOKA Titin Nuryawati Titin Nuryawati Titin Nuryawati Tony Irawan Wenny Amaliah Yayu Romdhonah Yeni Widaningrum Yohanes Bayu Suharto Yudi Chadirin Yudiwanti Yudiwanti Wahyu E. Kusumo