cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Rokhani Hasbullah
Contact Email
rokhani.h@gmail.com
Phone
-
Journal Mail Official
jurnaltep@yahoo.com
Editorial Address
-
Location
Kota bogor,
Jawa barat
INDONESIA
Jurnal Keteknikan Pertanian
Published by Institut Pertanian Bogor
ISSN : 24070475     EISSN : 23388439     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Keteknikan Pertanian dengan No. ISSN 2338-8439, pada awalnya bernama Buletin Keteknikan Pertanian, merupakan publikasi resmi Perhimpunan Teknik Pertanian Indonesia (PERTETA) bekerjasama dengan Departemen Teknik Mesin dan Biosistem (TMB) IPB yang terbit pertama kali pada tahun 1984, berkiprah dalam pengembangan ilmu keteknikan untuk pertanian tropika dan lingkungan hayati. Jurnal ini diterbitkan dua kali setahun. Penulis makalah tidak dibatasi pada anggota PERTETA tetapi terbuka bagi masyarakat umum. Lingkup makalah, antara lain: teknik sumberdaya lahan dan air, alat dan mesin budidaya, lingkungan dan bangunan, energi alternatif dan elektrifikasi, ergonomika dan elektronika, teknik pengolahan pangan dan hasil pertanian, manajemen dan sistem informasi. Makalah dikelompokkan dalam invited paper yang menyajikan isu aktual nasional dan internasional, review perkembangan penelitian, atau penerpan ilmu dan teknologi, technical paper hasil penelitian, penerapan, atau diseminasi, serta research methodology berkaitan pengembangan modul, metode, prosedur, program aplikasi, dan lain sebagainya.
Arjuna Subject : -
Articles 10 Documents
 1 
Search results for , issue "Vol. 10 No. 2 (2022): Agustus 2022" : 10 Documents clear
Study on The Uprooting Force for Cassava Harvesting Agus Haryanto; Mochamad Zakky; Budianto Lanya
Jurnal Keteknikan Pertanian Vol. 10 No. 2 (2022): Agustus 2022
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.010.2.77-86

Abstract

Harvesting of cassava is still mostly done manually by pulling cassava stems that are ready to be harvested. This study aimed to determine the amount of force required to pull cassava stems. The research was conducted on farmer's land in Bandar Agung Village, Bandar Sakti District, Central Lampung Regency. A sample of 50 cassava trees was selected to represent the center and four edges of 1-ha area sizing of 50-m x 200-m. Measurement of the pulling force of cassava was carried out using a winch supported by a triangular frame of iron pipe and equipped with a 100-kg chicken scale and rope. Parameters included force to uproot cassava stem, soil moisture content, soil hardness, stem circumference, plant height, and cassava tuber weight. The results showed that the uprooting force of cassava stem ranged from 20 kg (196 N) to 70 kg (686 N) with an average of 44.9 kg (440.2 N). The results also showed that the pulling force of cassava decreased with increasing soil moisture content with a range between 196 kN at soil moisture 15,9% and 686 kN at soil moisture 10%. Factors of plant height, stem circumference, and tuber weight also had a positive effect on the pulling force of cassava.
Prediction of Copra Chemical Content with FT-NIR Spectroscopy Using PLS mardiantono Mardiantono; I Wayan Budiastra; Sutrisno
Jurnal Keteknikan Pertanian Vol. 10 No. 2 (2022): Agustus 2022
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.010.2.87-97

Abstract

Kopra merupakan produk turunan kelapa yang digunakan sebagai bahan baku pembuatan minyak kelapa dan turunannya. Kandungan kimia kopra umumnya ditentukan dengan menggunakan metode kimia yang merusak bahan, waktu yang lama, dan membutuhkan bahan kimia. Oleh karena itu, perlu metoda alternatif dalam penentuan kandungan kimia kopra yang tidak merusak, cepat dan tidak mengandung bahan kimia. Tujuan penelitian ini adalah untuk mengkaji metoda spektroskopi FT-NIRS sebagai metode cepat untuk prediksi kadar air dan asam lemak bebas (FFA) kopra. Kopra utuh sebanyak 45 sampel diukur reflektannya dengan spectrometer NIRFlex N-500 pada panjang gelombang 1000-2500 nm. Setelah itu kaadar air dan kadar asam lemak bebas kopra ditentukan menggunakan metode kimia. Sejumlah pengolahan data spektra (SNV, MSC, Normalization, dan OSC) dilakukan kemudian spektra yang telah terolah dikalibrasi dengan data kimia menggunakan PLS. Prediksi terbaik untuk penentuan kadar air kopra adalah menggunakan pretreatment SNV dengan 12 faktor PLS (r = 0,97, SEC = 0,70%, SEP = 0,73, CV = 9,08%, RPD = 3,41 dan konsistensi 95,75%). Sedangkan untuk prediksi kadar asam lemak bebas (FFA) adalah menggunakan pretreatment OSC dengan faktor 13 PLS (r = 0,90, SEC = 0,04%, SEP = 0,05%, CV = 24,45%, RPD = 2,05 dan konsistensi 71,78%). Hasil ini menunjukkan bahwa kadar air dan kadar FFA kopra dapat diprediksi oleh FT NIR Spectroscopy.
Evaluating the Sustainability Utilization of Post-Harvest Coffee Agricultural Equipment and Machines Yusi Dwi Setyoningtyas; Emmy Darmawati; Sutrisno Mardjan
Jurnal Keteknikan Pertanian Vol. 10 No. 2 (2022): Agustus 2022
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.010.2.162-171

Abstract

Kopi sebagai penyumbang devisa terbesar keempat Indonesia dan produksinya didominasi perkebunan rakyat dengan pengelolaan yang terbatas. Untuk mendukung hilirisasi kopi lokal maka Direktorat Jenderal Perkebunan mengembangkan peralatan pascapanen kopi melalui bantuan alat dan mesin (alsintan) pascapanen dan pengolahan kopi. Sehingga evaluasi pemanfaatan alsintan terhadap keberlanjutan perlu dilakukan untuk mendukung kebijakan pembangunan industri prioritas kopi. Tujuan penelitian ini adalah mengevaluasi keberlanjutan pemanfaatan bantuan alsintan pascapanen kopi bantuan pemerintah periode tahun 2017-2020. Penelitian ini menggunakan metodologi survei melalui pendekatan expert systemdengan teknik analisis yakni: Data Envelopment Anaysis (DEA) dan Analitycal Hierarchical Process (AHP). Penelitian ini menunjukkan bahwa status keberlanjutan pemanfaatan alat dan mesin pertanian pascapanen kopi semua poktan masuk dalam kategori baik pada aspek ekonomi dan teknologi. Sedangkan rekomendasi strategi peningkatan pemanfaatan alsintan pascapanen kopi sesuai alternatif yang diprioritaskan adalah bahan baku dengan stakeholder yang berperan yaitu poktan.
High Precision Fertilizer Applicator For Industrial Plantation: Discrete Element Method Simulation And Prototyping Ignatius Pulung Nurprasetio; Adit Febriansyah; Robby Dwianto Widyantara; Bentang Arief Budiman
Jurnal Keteknikan Pertanian Vol. 10 No. 2 (2022): Agustus 2022
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.010.2.98-107

Abstract

We designed a high-precision fertilizer applicator to distribute fertilizer with the required dose at every specified point. The dose necessary aims to meet the nutritional needs of plants, so that plant growth is more effective while reduce waste. The fertilizer applicator was designed to have an auger and drive system that can discharge the fertilizer precisely. A 3D CAD model of the applicator was created to conduct a discrete element simulation to predict the discharge fertilizer process. Experiment was carried out to validate the simulation model. The experiment utilized a small-scale applicator prototype manufactured by 3D printing. A small electric actuator controlled by Arduino microcontroller was installed to rotate the auger. The auger can push and release the fertilizer precisely depending on the rotation's number. Both simulation and experiment results were compared and showed a small error of 6.42%. The results show our designed fertilizer applicator have good accuracy and precision, which indicates the applicator was suitable to distribute fertilizer uniformly.
Effect of Initial Temperature And Degree of Roasting on Physicochemical Properties And Taste of Solok Arabic Coffee Sutrisno Suro Mardjan; Eko Heri Purwanto; Ginanjar Yoga Pratama
Jurnal Keteknikan Pertanian Vol. 10 No. 2 (2022): Agustus 2022
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.010.2.108-122

Abstract

Roasting process is one of the processes in secondary processing. Variables used during the roasting process include the initial temperature and the degree of roasting. This study aims to analyze the physicochemical properties and perform taste tests on Arabica Solok coffee with different initial temperatures and roasting degrees. The study begans with the analysis before roasting, then roasting with the initial temperature of 180οC to 200οC and 220οC at any degree of roasting light, medium and dark and for the last, testing of the physicochemical and taste properties of Solok Arabica coffee. Analysis of the resulting data using two-way Analysis of Variance (ANOVA) and if it gives a significant effect, then continued with the Duncan' Multiple Range Test (DMRT). The results showed that the initial roasting temperature only affected the yield, flavor and aftertaste attributes . While the degree of roasting has a significant effect on several physicochemical properties including yield, bulk density, water content, color, acidity (pH) and several taste attributes including fragrance, flavor, acidity, body, aftertaste, sweetness and overall and there is no interaction between two variables on all tested properties. The physicochemical properties and taste attributes that were not affected by the initial temperature and roasting degree were ash content and antioxidant activity, balance, uniformity, and clean cup. Coffee with medium roasting degree treatment got the highest final score of 82,3 (specialty)
Performance Analysis of Vapor Compression Heat Pump Dryer for Zedoary Drying (Curcuma zedoaria (Berg.) Roscoe) Hayatri Sali Setia; Leopold Oscar Nelwan; I Wayan Astika; Rokhani Hasbullah
Jurnal Keteknikan Pertanian Vol. 10 No. 2 (2022): Agustus 2022
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.010.2.123-132

Abstract

Zedoary (Curcuma zedoaria (Berg.) Roscoe) drying in simplicia form requires a proper treatment because the moisture content is high about 80–90 % that have perishable properties. Temperature, relative humidity and air flow rate are influential factors in drying medicinal plants then proper drying conditions need to be known. Dryer with vapor compression heat pump (VCHP) system is one of mechanical dryers as an alternative drying method to shorten drying time and maintain the quality. In this system, the environmental air flow is passed through the evaporator and condenser. The configuration of air flow passing through these two components is assessed in proportion to increase its effect on drying air conditions. The study aims to find the best configuration of air flow rate from VCHP which produces drying air conditions that are suitable for zedoary drying then analyze the performance of VCHP. The research was conducted by configuring the air flow and analyzing dryer performance of VCHP system. The results obtained the best configuration of air flow for zedoary drying are: (i) the air inlet before evaporator is given an inhibitor, (ii) the air inlet before condenser is closed. This configuration provides the highest sensible heating effect and the highest decrease in drying air humidity. VCHP performance test results for zedoary drying are: (i) COPhp is 3.11, (ii) STEC value is 4.066 MJ/kg, (iii) SMERT value is 0.870 kg/kWh, and (iv) SMERTot value is 0.449 kg/kWh. The STEC, SMERT and SMERTot values obtained are affected by drying time.
The Formulation of Agrowaste-based Edible Coating Composition to Preserve Quality of Pineapple Inggit Kresna Maharsih; Memik Dian Pusfitasari; Lusi Ernawati; Citra Ayu Saraswati Putri; Muhammad Taufiq Hidayat
Jurnal Keteknikan Pertanian Vol. 10 No. 2 (2022): Agustus 2022
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.010.2.145-161

Abstract

Nanas (Ananas comosus) adalah salah satu komoditas buah unggulan di Indonesia. Namun, buah nanas termasuk sangat sensitif dan mudah mengalami penurunan kualitas. Salah satu cara untuk mencegah atau memperlambat fenomena tersebut adalah dengan melapisi nanas terolah minimal menggunakan edible coating. Pada penelitian ini, edible coating dibuat dari pati kulit singkong, kitosan, dan gliserol. Kitosan tidak dapat larut dalam air, sehingga harus menggunakan asam asetat dan asam sitrat untuk melarutkannya. Selain sebagai pelarut, asam asetat dan asam sitrat juga berperan sebagai antioksidan. Tujuan dari penelitian ini adalah memperoleh komposisi edible coating terbaik untuk melindungi nanas terolah minimal dari pembusukan. Pembuatan edible coating dilakukan dengan variasikan konsentrasi pati, gliserol, serta jenis asam untuk melarutkan kitosan. Adapun hasil terbaik yang didapatkan pada variabel M yang terdiri dari pati 5% b/v, gliserol 0.6 mL/gr, kitosan 1% b/v dengan pelarut asam sitrat 2% b/v. Browning muncul pada hari ke-14 pada nanas terlapisi edible coating Variabel M yang disimpan pada suhu 12.4oC dengan persen penurunan kadar vitamin C adalah 1.11%. Hasil ini juga sesuai dengan data uji sensori, dimana nanas dengan pelapis Variabel M memperoleh nilai rata-rata kesukaan tertinggi untuk parameter aroma, tekstur, warna, rasa, dan total penerimaan.
Near Real Time Spasial Distribution of Tillage Specific Draft Over Uncultivated Sugar Cane Plantation Based on SENTINEL-1A Imagery Harry Imantho; Kudang Boro Seminar; Wawan Hermawan; Satyanto Krido Saptomo
Jurnal Keteknikan Pertanian Vol. 10 No. 2 (2022): Agustus 2022
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.010.2.172-185

Abstract

Variabilitas spasial sangat penting dalam pengelolaan pertanian skala besar seperti perkebunan. Informasi tentang variabilitas spasial lahan pertanian diperlukan untuk memastikan efektivitas dan efisiensi pengoperasian mesin pengolahan tanah. Studi ini mengusulkan sebuah model untuk menentukan distribusi spasial mendekati waktu nyata dan resolusi tinggi dari draft spesifik pengolahan tanah berdasarkan citra radar Sentinel-1A. Hasil penelitian menunjukkan bahwa dinamika spasial kadar air tanah dekat waktu nyata dengan fraksi debu dan liat pada lapisan olah tanah mempengaruhi sifat mekanik tahanan penetrasi tanah. Model Dubois telah diterapkan untuk menghitung kadar air tanah spasial berdasarkan Sentinel-1A. Model matematika untuk menghitung tahanan penetrasi tanah dikembangkan dari metode yang diusulkan menggunakan pendekatan regresi berganda berdasarkan data sampel yang dikumpulkan dari perkebunan tebu di kabupaten Kediri dan Sidoarjo, Jawa Timur, Indonesia. Kinerja model telah dihitung dan menunjukkan kinerja yang baik dengan nilai RMSE, MAPE dan akurasi masing-masing sebesar 0,235, 18,32% dan 81,68%. Distribusi spasial tahanan penetrasi tanah yang dihasilkan oleh model menjadi masukan penting dalam perhitungan draft spesifik pengolahan tanah berdasarkan pendekatan Kisu. Distribusi tahanan penetrasi dan draft spesifik pengolahan tanah dapat dihitung dan divisualisasikan menggunakan peta spasial. Peta sebaran draft spesifik pengolahan tanah membuktikan bahwa gaya yang bekerja per luas penampang tanah yang akan diolah bervariasi di seluruh area perkebunan tebu. Kontribusi masa depan dari penelitian ini adalah untuk mengembangkan sistem pendukung keputusan dalam pemilihan mesin pertanian yang tepat untuk operasi pengolahan tanah di perkebunan tebu berdasarkan prinsip-prinsip pertanian presisi.
Kajian Pola Aliran dalam Reaktor Biodiesel dengan 4 Tipe Agitator melalui Simulasi Computational Fluid Dynamics Sahrun Dongoran; Dyah Wulandani; Desrial Desrial
Jurnal Keteknikan Pertanian Vol. 10 No. 2 (2022): Agustus 2022
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.010.2.133-144

Abstract

Biodiesel is formed by transesterification reaction of vegetable or animal fatty acid with alcohol. Agitation of fluid in the biodiesel reactor is required for occurring of the transesterification reaction. This research aims to study the flow behaviour in reactor with different type of agitator using computational fluid dynamics simulation and determine the optimum type of agitator in biodiesel production. Flow behaviour which was studied includes temperature and fraction distribution, turbulence intensity, and vorticity of fluid. The study was conducted in transient and steady state simulation with agitation types of helical screw, turbine, propeller, and anchor. The material that was modelled consist of cooking oil and methanol with mole ratio of 1:6. The mixing process used 500 rpm agitation speed and 60-65 oC mixing temperature. Furthermore, to determine the optimum agitator, the analytical hierarchy process method was carried out. The simulation results were analysed then obtained the score of each agitator, which were 0.314 (anchor), 0.350 (helical screw), 0.249 (propeller) and 0.087 (turbine). Based on the result, the optimum agitator was the helical screw type.
Implementation of Arduino Uno-Based Temperature Control for Drying Kandis Acid (Garcinia xanthochymus) Ifmalinda Ifmalinda; Khandra Fahmi; Siska Dwi Putri
Jurnal Keteknikan Pertanian Vol. 10 No. 2 (2022): Agustus 2022
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.010.2.186-199

Abstract

Kandis acid is one of the spices that is often used for cooking and health ingredient. Processing kandis acid fruit skin is by the drying process. Drying can be done using tools or in the sun. Drying using tools is still not optimal because there is no temperature control during drying, this study drying was carried out using an arduino-based oven so that the initial temperature could be determined and the temperature during drying could be controlled. This study aims to evaluate the drying temperature control in an arduino uno-based oven and also to evaluate the drying method used on the quality of the kandis acid produced. Based on the research that has been done, controlling the drying temperature using an arduino uno-based oven that has been running well, the oven automatically controls the drying temperature to return to the set point temperature used (60 0C). The best quality of kandis acid is drying using a tool, seen from observations such as mold growth, drying time and drying rate. However, in drying using the sun, the value of vitamin C has a higher value than drying using a tool. The rind of the kandis acid used was 2,7 kg in each drying, the initial moisture content in drying using a tool was 83,289% with a final moisture content of 9,672% and the initial moisture content drying using sunlight was 83,744% with a final moisture content of 10,796%. The drying time for drying using a tool is 9,3 hours with a drying rate of 0,041 kg/hour, while for drying using sunlight was 20,7 hours with a drying rate of 0,036 kg/hour.

Page 1 of 1 | Total Record : 10

 1 

Filter by Year

2022 2022


Reset
Filter By Issues
All Issue Vol. 13 No. 4 (2025): Jurnal Keteknikan Pertanian Vol. 13 No. 3 (2025): Jurnal Keteknikan Pertanian Vol. 13 No. 2 (2025): Jurnal Keteknikan Pertanian Vol. 13 No. 1 (2025): Jurnal Keteknikan Pertanian Vol. 12 No. 3 (2024): Jurnal Keteknikan Pertanian Vol. 12 No. 2 (2024): Jurnal Keteknikan Pertanian Vol. 12 No. 1 (2024): Jurnal Keteknikan Pertanian Vol. 11 No. 3 (2023): Jurnal Keteknikan Pertanian Vol. 11 No. 2 (2023): Jurnal Keteknikan Pertanian Vol. 11 No. 1 (2023): Jurnal Keteknikan Pertanian Vol. 10 No. 3 (2022): Desember 2022 Vol. 10 No. 2 (2022): Agustus 2022 Vol. 10 No. 1 (2022): April 2022 Vol. 9 No. 3 (2021): Jurnal Keteknikan Pertanian Vol. 9 No. 2 (2021): Jurnal Keteknikan Pertanian Vol. 9 No. 1 (2021): Jurnal Keteknikan Pertanian Vol. 8 No. 3 (2020): Jurnal Keteknikan Pertanian Vol. 8 No. 2 (2020): Jurnal Keteknikan Pertanian Vol. 8 No. 1 (2020): Jurnal Keteknikan Pertanian Vol. 7 No. 3 (2019): JURNAL KETEKNIKAN PERTANIAN Vol. 7 No. 2 (2019): JURNAL KETEKNIKAN PERTANIAN Vol. 7 No. 1 (2019): JURNAL KETEKNIKAN PERTANIAN Vol. 6 No. 3 (2018): JURNAL KETEKNIKAN PERTANIAN Vol. 6 No. 2 (2018): JURNAL KETEKNIKAN PERTANIAN Vol. 6 No. 1 (2018): JURNAL KETEKNIKAN PERTANIAN Vol. 5 No. 3 (2017): JURNAL KETEKNIKAN PERTANIAN Vol. 5 No. 2 (2017): JURNAL KETEKNIKAN PERTANIAN Vol. 5 No. 1 (2017): JURNAL KETEKNIKAN PERTANIAN Vol. 4 No. 2 (2016): JURNAL KETEKNIKAN PERTANIAN Vol. 4 No. 1 (2016): JURNAL KETEKNIKAN PERTANIAN Vol. 3 No. 2 (2015): JURNAL KETEKNIKAN PERTANIAN Vol. 3 No. 1 (2015): Jurnal Keteknikan Pertanian Vol. 2 No. 2 (2014): Jurnal Keteknikan Pertanian Vol. 2 No. 1 (2014): Jurnal Keteknikan Pertanian Vol. 27 No. 1 (2013): Jurnal Keteknikan Pertanian Vol. 1 No. 1 (2013): Jurnal Keteknikan Pertanian Vol. 26 No. 2 (2012): Jurnal Keteknikan Pertanian Vol. 26 No. 1 (2012): Jurnal Keteknikan Pertanian Vol. 25 No. 2 (2011): Jurnal Keteknikan Pertanian Vol. 25 No. 1 (2011): Jurnal Keteknikan Pertanian Vol. 24 No. 2 (2010): Jurnal Keteknikan Pertanian Vol. 24 No. 1 (2010): Jurnal Keteknikan Pertanian Vol. 23 No. 2 (2009): Jurnal Keteknikan Pertanian Vol. 23 No. 1 (2009): Jurnal Keteknikan Pertanian Vol. 22 No. 2 (2008): Jurnal Keteknikan Pertanian Vol. 22 No. 1 (2008): Jurnal Keteknikan Pertanian Vol. 21 No. 4 (2007): Jurnal Keteknikan Pertanian Vol. 21 No. 3 (2007): Jurnal Keteknikan Pertanian Vol. 21 No. 2 (2007): Jurnal Keteknikan Pertanian Vol. 21 No. 1 (2007): Jurnal Keteknikan Pertanian Vol. 20 No. 3 (2006): Jurnal Keteknikan Pertanian Vol. 20 No. 2 (2006): Jurnal Keteknikan Pertanian Vol. 20 No. 1 (2006): Jurnal Keteknikan Pertanian Vol. 19 No. 3 (2005): Buletin Keteknikan Pertanian Vol. 19 No. 1 (2005): Buletin Keteknikan Pertanian Vol. 17 No. 2 (2003): Buletin Keteknikan Pertanian Vol. 17 No. 1 (2003): Buletin Keteknikan Pertanian Vol. 16 No. 1 (2002): Buletin Keteknikan Pertanian Vol. 15 No. 2 (2001): Buletin Keteknikan Pertanian Vol. 15 No. 1 (2001): Buletin Keteknikan Pertanian Vol. 14 No. 3 (2000): Buletin Keteknikan Pertanian Vol. 14 No. 2 (2000): Buletin Keteknikan Pertanian Vol. 14 No. 1 (2000): Buletin Keteknikan Pertanian Vol. 13 No. 3 (1999): Buletin Keteknikan Pertanian Vol. 13 No. 1 (1999): Buletin Keteknikan Pertanian Vol. 12 No. 2 (1998): Buletin Ketenikan Pertanian Vol. 12 No. 1 (1998): Buletin Ketenikan Pertanian Vol. 11 No. 1 (1997): Buletin Ketenikan Pertanian Vol. 6 No. 1 (1992): Buletin Ketenikan Pertanian More Issue