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All Journal HAYATI Journal of Biosciences Jurnal Fitopatologi Indonesia Agrikultura Jurnal Lahan Suboptimal JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Seminar Nasional Lahan Suboptimal Jurnal Pengabdian Masyarakat Bumi Raflesia Planta Simbiosa : Jurnal Tanaman Pangan dan Hortikultura SEMAR (Jurnal Ilmu Pengetahuan, Teknologi, dan Seni bagi Masyarakat) Journal of Global Sustainable Agriculture BIOVALENTIA: Biological Research Journal
Harman Hamidson
Jurusan Hama Dan Penyakit Tumbuhan, Fakultas Pertanian, Universitas Sriwijaya
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Physics Social Sciences Other

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Penyakit Antraknosa (Colletotrichum spp.) pada Tanaman Cabai di Kabupaten Ogan Ilir Harman Hamidson; Suwandi Suwandi; Effendy. TA
Seminar Nasional Lahan Suboptimal 2018: Prosiding Seminar Nasional Lahan Suboptimal "Tantangan dan Solusi Pengembangan PAJALE dan Kela
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (560.964 KB)

Abstract

Hamidson et al, 2019. Anthracnose Disease (Colletotrichum spp.) of Chilli (Capsicum annum L) in Ogan Ilir District. pp. 129-137.Anthracnose disease is one of the obstacles in the production of red chili in the field, and is ranked first among fungal diseases. This study aims to determine the procedures and habits of farmers in cultivating red chilli plants in the field, namely the layout of the mounds and evaluation of the use of fungicides. Plant samples were taken randomly for each plot of 80 plants the plants were every harvesting  six times for 3. The percentage of disease incidence, disease severity and the extent of the curvature of the anthracnose disease (incidence and severity of the disease) showed a significant difference in the order of the mound plot. The results of evaluating the use of fungicides in vitro showed a significant difference in growth inhibitors of Colletotrichum spp.
Penerapan Pemakaian Pestisida yang Tepat dalam Mengendalikan Organisme Penganggu Tanaman Sayuran di Desa Tanjung Baru, Indralaya Utara Arsi Arsi; Andika Tiara Sukma; Suparman SHK; Harman Hamidson; Chandra Irsan; Suwandi Suwandi; Yulia Pujiastuti; Nurhayati Nurhayati; Abu Umayah; Bambang Gunawan
SEMAR (Jurnal Ilmu Pengetahuan, Teknologi, dan Seni bagi Masyarakat) Vol 11, No 1 (2022): Mei
Publisher : LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/semar.v11i1.56894

Abstract

Masyarakat di Desa Tanjung Baru merupakan masyarakat yang mayoritas pekerjaan adalah petani. Tanaman yang banyak di tanam oleh masyarakat tersebut yaitu, tanaman sayuran. Dalam budidaya tanaman sayuran ini banyak sekali permasalahan yang dihadapi. Dalam melakukan pengendaliannya menggunakan pestisida sintetik untuk menekan pertumbuhan dan perkembangan organisme tersebut. Akan tetapi, masyarakat menggunakankan pestisida sintetik sering tidak sesuai ajuran yang ada pada label kemasan pestisida sintetik tersebut. Permasalahan-permasalahan ini terjadi pada pada masyarakat di Desa Tanjung Baru, Kecamatan Indralaya Utara, Kabupaten Ogan Ilir Sumatera Selatan. kegiatan pengabdian ini diharapkan petani desa Tanjung Baru dapat mengaplikasikan pestisida sintetik dengan baik dan benar. Masyarakat dapat menggunakan pestisida sintetik tepat sasaran terhadap organisme yang dikendalikan di lapangan. Masyarakat dapat menggunakan dosis yang diajurkan dalam label kemasan dan tidak melakukan pemborosan dalam penggunaan pestisida sintetik. Sehingga masyarakat dapat meningkatkan pendapatan dalam budidaya tanaman sayuran. Metode dalam pengabdian ini dengan melakukan kegiatan yaitu, memberikan penyuluhan tentang pemakaian pestisida yang sesuai dosis pada pertanaman sayuran, aplikasi pestisida sintetik yang tepat sasaran terhadap organisme pengganggu di lapangan dan penyuluhan bagaimana cara pengaplikasikan pestisida sintetik dengan baik dan benar. Berdasarkan hasil pengamatan yang dilakukan petani sudah melakukan pengendalian sesuai dosis yang diajurkan. Hal ini setelah dilakukan penyuluhan, banyak petani melakukan penyemprotan pestisida yang tidak sesuai dengan dosis atau takaran. Setiap petani tidak lepas dengan penggunaan pestisida. Pemakaian alat pelindung masih sangat kurang sekali, petani rata-rata memakai masker sebagai alat pelindung
BIOLOGY OF Pentalonia nigronervosa COQUEREL ON VARIOUS ZINGIBERACEOUS CROPS Rizki Anwar Efendi; Suparman SHK; Harman Hamidson
BIOVALENTIA: Biological Research Journal Vol. 8 No. 2 (2022)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.8.2.2022.308

Abstract

Pentalonia nigronervosa Coquerel (Hemiptera; Aphididae) is the main vector of banana bunchy top disease caused by Banana Bunchy Top Virus (BBTV). The disease is an important and most damaging disease to the crop because infected bananas fail to produce fruits. As the vector of BBTV, P. nigronervosa is able to lives not only on banana plants but also on others plants, especially those belong to Family Zingiberaceae. The objective of this research was to reveal the biology of P. nigronervosa on banana and other plant species belong to Family Zingiberaceae commonly found around banana cultivation areas. The research was conducted in the Laboratory of Entomology, Department of Plant Protection, Faculty of Agriculture, Sriwijaya University from June to December 2021. The research was an experimental research arranged in a Completely Randomized Design using plant species as treatment and was replicated 10 times of replications. Young suckers of banana and zingiberaceous plants were used to rear the banana aphid where all biological aspects of the aphid were observed. P. nigronervosa and the young suckers were placed in a transparent pot covered with transparent plastic with a window made from cheese cloth to facilitate air movement. Room temperature was set to approximately 25oC since the aphid grow and reproduce well under such temperature. The results showed that P. nigronervosa are able to live and reproduce not only on banana but also on seven species of Zingiberaceous plants with little variation of some morphological and biological parameters. The significant different was found between biological characteristics of the aphid lived on torch ginger and cardamom which had longer life cycle but smaller fecundity compared to other experimental hosts used in the research.
Keanekaragaman Serangga di Tanaman Gambas (Luffa acutangula L.) pada Lahan Monokultur dan Tumpang Sari di Desa Tanjung Pering Kecamatan Indralaya Utara Kabupaten Ogan Ilir Arsi Arsi; Septian Iman Nugraha; Suparman SHK; Bambang Gunawan; Yulia Pujiastuti; Harman Hamidson; Chandra Irsan; Suwandi Suwandi
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol. 19 No. 1 (2022): Sainmatika : Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/sainmatika.v19i1.8129

Abstract

Gambas (Luffa acutangula L.) atau oyong merupakan famili dari Cucurbitae, yang berasal dari India dan telah beradaptasi di Asia Tenggara salah satunya Indonesia. Gambas sangat digemari oleh masyarakat, sehingga kebutuhan gambas meningkat. Akan tetapi, di dalam budidaya gambas sering sekali mengalami gangguan oleh hama dan penyakit. Sehingga produksi gambas menurun akibat serangan tersebut. Serangga yang terdapat pada gambas memiliki beragam dan memiliki peranan masing-masing. Keberadaan serangga pada lahan pertanian dapat dipengaruhi oleh faktor biotik dan faktor abiotik. Tujuan penelitian ini untuk mengetahui keanekaragaman serangga pada tanaman gambas (Luffa acutangula  L.) dilahan dengan pola tanam monokultur dan dilahan tumpang sari. Metode pengamatan serangga ini dengan menggunakan metode Scan sampling dan Pantrap. Berdasarkan hasil penelitian terdapat 5 ordo serangga yang terdiri dari ordo Diptera, Hymenoptera, Lepidoptera, Orthoptera dan Hemiptera. Keanekaragaman serangga pada lahan monokultur dan polikultur tidak berbeda pada pengamatan langsung tergolong rendah, sedangkan menggunakan perangkap pada masing-masing lahan tergolong sedang.
The Evaluation of Implementation of Integrated Pest and Disease Control by Farmers of Food and Holticultural Corps in Banyuasin and Ogan Komering Ulu Timur suparman SHK; Arsi; Bambang Gunawan; Abu Umayah; Yulia Pujiastuti; Harman Hamidson
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol. 20 No. 1 (2023): Sainmatika : Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/sainmatika.v20i1.11144

Abstract

Reducing crop cultivation is providing ecological biota for plants through Integrated Pest Management (IPM). Farmers' problems regarding pests and diseases in Banyuasin and OKU Timur, especially for food crops and horticulture farmers. The purpose of this research is to evaluate the compliance of food crops and horticulture farmers in implementing safe and environmentally friendly IPM. Study on various fields of food and horticulture farmers in Banyuasin and Ogan Komering Ulu. The research method used is purposive sampling. Observation of Plant Pests and Diseases was completed directly in the field. Then determine the disease score in each sample plant. The parameters observed in this study are the behavior of farmers towards the decision-making process of using pesticides. Pest and disease intensity, and disease attack percentage were analyzed descriptively in the form of tables and graphs, as well as correlation analysis. The highest value of diversity of pests and diseases of food and horticultural crops based on the entire area of the observed land was found in a land area of 0.25 ha, which is the area that is often found in land for crop cultivation. The average age percentage of farmers in Banyuasin and OKU East is 40 to 50 years old. The average education of farmers in Banyuasin and OKU Timur is 24 farmers. The percentage and intensity of both horticultural and food crops in Banyuasin are good because only a few farmers get a score of 2 or 1. Cultivation techniques are land preparation, land sanitation, selection of resistant varieties, spacing, irrigation, crop rotation, intercropping, mulching, natural enemies of insects, and weeding.
Inventarisasi Spesies dan Intensitas Serangan Hama Tanaman Terung (Solanum melongena L.) pada Dua Sistem Kultur Teknis di Daerah Kabupaten Agam, Sumatera Barat Arsi, Arsi; Lailaturrahmi, Lailaturrahmi; SHK, Suparman; Hamidson, Harman; Pujiastuti, Yulia; Gunawan, Bambang; Pratama, Rahmat; Umayah, Abu
Agrikultura Vol 33, No 2 (2022): Agustus, 2022
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v33i2.40249

Abstract

Terung (Solanum melongena L.) termasuk salah satu komoditas sayuran buah penting yang mempunyai banyak varietas dengan berbagai bentuk dan warna yang khas. Dalam budidaya tanaman terung, beberapa kendala yang sering dihadapi oleh petani. Kendala ini salah satunya adalah adanya serangan organisme pengganggu tanaman. Gangguan hama pada tanaman terung dapat penurunan produksi karena serangan hama mengakibatkan pertumbuhan dan perkembangan tanaman menjadi tidak optimum. Tujuan penelitian ini adalah untuk melakukan inventarisasi spesies dan menentukan intensitas serangan hama tanaman terung pada dua sistem kultur teknis di Kabupaten Agam, Sumatera Barat. Penelitian dilakukan dari bulan Mei sampai Juli 2021. Metode yang digunakan adalah survey atau observasi langsung di lapangan untuk mengamati jenis spesies, jumlah populasi dan intensitas serangan hama dengan pengambilan sampel yang dilakukan secara acak. Penelitian dilakukan di dua lahan pertanaman terung dengan umur tanaman yang berbeda. Jumlah populasi dan intensitas serangan hama dianalisis menggunakan uji t pada taraf kepercayaan 5%. Hama yang ditemukan pada tanaman terung adalah Epilachna sparsa (Coleoptera: Coccinellidae), Empoasca sp. (Hemiptera: Cicadellidae), Bemisia tabaci (Hemiptera: Aleyrodidae), Spodoptera litura (Lepidoptera: Noctuidae), Chrysodeixis chalcites (Lepidoptera: Noctuidae) dan Bradybaena sp. (Stylommatophora: Bradybaenidae). Hasil pengamatan menunjukkan bahwa kultur teknis berpengaruh secara signifikan terhadap populasi hama dan intensitas serangan hama Empoasca sp., B. tabaci, E. sparsa, S. litura, Bradybaena sp. dan C. chalcites , akan tetapi populasi hama dan insitensitas serangan pada masing-masing pengamatan ada yang tidak berpengaruh secara signifikan.
Morphometrics and biological characteristics of Pentalonia nigronervosa, the vector of Banana bunchy top virus, living on various Araceous plants species Suparman, Suparman; Oktarida, Rafika; Hamidson, Harman; Arsi , Arsi
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 23 No. 1 (2023): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.12377-87

Abstract

Banana aphid Pentalonia nigronervosa Coquerel (Hemiptera: Aphididae) is widely known as the main vector of Banana bunchy top virus (BBTV). It had been reported that banana aphid could live on alternative hosts belong to Family Araceae, and become important issue since Araceous plants are commonly found surrounding banana cultivations. Research had been conducted to study the morphometrics and biological characteristics of banana aphids living on various species of Araceous plants. The results showed that Araceous plant species could influence the morphometric and biological characteristic of banana aphids, indicated by the significant difference in some biological characteristics such as life cycle, life span, reproductive period, and fecundity. The average life span of banana aphids living on Araceous plants ranged from 22.80 to 47.90 days, it was shorter than the one that of lived on a banana plants. P. nigronervosa was able to develop a bigger colony when the aphid lived on Araceous plants, especially when they were transferred to Bogor taro where their fecundity reached 63 nymphs per female. Araceous plants also affected the morphometric of P. nigronervosa indicated by smaller size of the aphids, compared to those living on banana plant. The ability of banana aphid to live and reproduce in various Araceous plants would be beneficial to the development of control strategies of BBTV.
Effects of holy basil (Ocimum sanctum) on viral disease of chili (Capsicum annum L.) under mixed crop cultivation Arsi, Arsi; SHK, Suparman; Lailaturrahmi; Hamidson, Harman; Pujiastuti, Yulia; Umayah, Abu; Gunawan, Bambang; Pratama, Rahmat; Irsan, Chandra; Suwandi
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 23 No. 2 (2023): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.22349-57

Abstract

Chili is one of the important commodities in Indonesia. Chili cultivation faces many obstacles, leading to a decrease in production, such as virus infections. Yellow leaf curl and curly top viruses are groups of viruses that are often found in chili fields. This research was conducted to investigate the effect of intercropping (basil-chili) in suppressing viral diseases, especially yellow leaf curl and curly top viruses. A Randomized block design was used for this research, including intercropping and monoculture. The parameters observed in this study included disease incidence and intensity, the number and weight of chilies. Symptoms of virus infection include leaf curl, yellowing, and stunting. The disease has been reported to be transmitted by insect vectors, such as Aphis gossypii and Bemisia tabaci. The results showed that the incidence and intensity of yellow leaf curl and curly top virus diseases in chili pepper and basil plants were not significantly different in each treatment. The number of healthy chilies and their weight were also not significantly different. Damaged chilies are fruits that have been attacked by fruit flies. Basil intercropped with chilies attracts fruit flies, which affects the quantity and weight of the harvested chilies. The population of B. tabaci was significantly different in each treatment, while A. gossypii did not show significant differences among the treatments. Intercropping basil and chili increased the population of A. gossypii, while the population of B. tabaci decreased in this treatment. These two insect pests are vectors for yellow leaf curl and curly top viruses.
Pengaruh Kultur Teknis terhadap Serangan Penyakit pada Tanaman Oyong (Luffa Acutangula) di Desa Kuripan Kecamatan Empat Petulai Dangku Arsi, Arsi; SHK, Suparman; Hamidson, Harman; Umayah, Abu; Gunawan, Bambang; Pujiastuti, Yulia; Pratama, Rahmat; Pratiwi, Fannia Aristika
Seminar Nasional Lahan Suboptimal Vol 10, No 1 (2022): Prosiding Seminar Nasional Lahan Suboptimal ke-10 “Revitalisasi Sumber Pangan N
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Arsi A, SHK Suparman, Hamidson H, Umayah A, Gunawan B, Pujiastuti Y, Pratama R, Pratiwi FA.  2022. The effect of technical culture on disease attacks on oyong (Luffa Acutangula) plants in Kuripan Village, Kecamatan Four Petulai Dangku. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-10 Tahun 2022, Palembang  27 Oktober 2022. pp. 1011-1022.  Palembang: Penerbit dan Percetakan Universitas Sriwijaya (UNSRI).The luffa plant/oyong is a fruit vegetable that is widely consumed by Indonesians in the form of fresh fruit The nutritional value of luffa is quite good because this fruit vegetable is a source of vitamins and minerals. Oyong plant is a climbing plant/vine. Oyong plants need a dry climate, with sufficient water availability throughout the season. Agricultural cultivation systems are never free from pests or diseases. In the field of farmers, there is not much knowledge about plant diseases or the causes of the disease itself. For this reason, this research practice aims to determine the effect of intercropping on disease attacks on Oyong (Luffa acutangula) plants. Field practice has been carried out in Kuripan Village, Empat Petulai Dangku District, Muara Enim Regency, South Sumatra Province from May to June 2022. The observation method used in this field practice is the direct observation method in the field which is carried out by determining the land, the land being taken has different cropping patterns. Then determine the plants to be sampled using the diagonal method. The data collected were primary data in the form of direct observation of symptoms in the field and secondary data obtained from farmer interviews. From the observation, there were 2 types of diseases, namely brown spots and virus mosaic.
Insidensi dan Identifikasi Penyakit Layu pada Terong (Solanum melongena L.) di Desa Tanjung Pering, Kabupaten Ogan Ilir, Provinsi Sumatera Selatan Hamidson, Harman; Adrian, Rian; Umayah, Abu; Gunawan, Bambang
Seminar Nasional Lahan Suboptimal Vol 10, No 1 (2022): Prosiding Seminar Nasional Lahan Suboptimal ke-10 “Revitalisasi Sumber Pangan N
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Hamidson H, Adrian R, Umayah A, Gunawan B. 2022. Insidence and identification of wilt disease in eggplant (Solanum melongena L.) in Tanjung Pering Village, Ogan Ilir Regency, South Sumatera. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-10 Tahun 2022, Palembang 27 Oktober 2022. pp. 963-973. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Wilt disease of the Fusarium group is a necrotrophic plant disease that has a wide host range and distribution throughout the world. This pathogen can infect at least 408 plant species worldwide. This field practice aims to determine the percentage level and intensity of attack and identify the cause of wilt disease in eggplant in Tanjung Pering Village, North Indralaya District, Ogan Ilir Regency, South Sumatra Province. The method used in this field practice is carried out by conducting a survey or direct observation in the field to calculate the percentage level and intensity of wilt disease attack on eggplant, then identification is carried out at the Phytopathology Laboratory of the Department of Pests and Plant Diseases, and infectious tests are carried out in experimental land to prove pathogens. cause of wilt disease in eggplant. The results of this field, the cause of wilt disease in eggplant in Tanjung Pering Village, North Indralaya District, Ogan Ilir Regency is caused by the fungus Fusarium sp with an average percentage of wilt disease of 42.54% and an average intensity of wilt disease of 40.90% in the field.
Co-Authors Abdullah Salim Abu Umayah Abu Umayah Adrian, Rian Adriansyah, Fikri Agustia, Dinda Agustin, Vera Ahmad Muslim Ali Yahya, Irfan Alviana, Vivi Ayu Andika Tiara Sukma Anggoro Isnaini, Haidar Ardia Ayu Pramesti Regita Lince Arrwais, Rhani Arsi Arsi Arsi , Arsi Arsi Arsi Arsi, Arsi Ayu, Putri Bambang Gunawan Bambang Gunawan Bambang Gunawan Barokah, Putri Br Saragih, Evi Suryani Cahya, Muhardianto Chandra Irsan Chandra Irsan Chandra Irsan Chandra Irsan Damayathi, Dini Deswita, Adelia Dewi, Syahrina Djulian, Dhanillo Dona, Rama Effendy Effendy Effendy, TA. Effendy. TA Elfita Erise Anggraini, Erise Filli Pratama Fitra Gustiar, Fitra Hamzah Hasyim Hong Lau, Wei Izzati, Rinaldi Fahril Komar Palimanan Lailaturrahmi Lailaturrahmi, Lailaturrahmi Lina Budiarti Marieska Verawaty Mauluddin, M. Melinda, Dhea Milinia Puspita Sari, Jelly Muhari, Muhari Mustika Sari, Sinta Nabila, Ade Nadila, Nur Nirwati Anwar Noni Octariati Novita Sari, Karlinda Nugroho, M. Aldi Nurfadhilah, Laili Nurhayati Nurhayati Nurhayati Nurhayati Oktareni, Sangkut Sri Oktarida, Rafika Permata Sari, Yunita Pramesti Regita Lince, Ardia Ayu Pratiwi, Fannia Aristika Rafika Oktarida Rahmadani, Ria Rahmat Pratama, Rahmat Rama Doni Randah, Nahdatul Fatiyah Riansyah, Wanda Helmi Riska Resita Riski Anwar Efendi Riski Anwar Efendi Rizki Anwar Efendi Salsabila Cahyami, Prima Saputra, Rian Septian Iman Nugraha Shervinia Dwi Ayundra SHK, Suparman Silalahi, Melda Yolanda SITI HERLINDA Suci Rahmawati, Suci Sulistianingsih, Putri SUPARMAN . suparman SHK Suparman SHK Suparman Suparman Suwandi Suwandi Suwandi Suwandi Suwandi Suwandi Suwandi Suwandi Suwandi Syachputra, M. Ryan Syahri Syahri Tania Marta, Siti Hafiza Taqiyyuddin, Muhammad Titi Tricahyati Trianda, Gita Tricahyati, Titi Wagiyanti, Wagiyanti Wahyudi, Lidya Dwi Wike Nurwita Dewi Yulia Pujiastuti YULIA PUJIASTUTI YULIA PUJIASTUTI