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Ritonga, Zuriani, Management Study Program, Faculty of Economics and Business University of Labuhan Batu (Indonesia)
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Rivaie, Achmad Arivin, Assessment Institute for Agricultural Technology of Lampung (BPTP) Jl. H. ZA Pagar Alam No. 1A, Rajabasa, Bandar Lampung (Indonesia)
Riwandi, ., Study Program of Soil Science, Faculty of Agriculture, University of Bengkulu, 38371A (Indonesia)
Riwandi, ., Department of Agroecotechnology, Agriculture Faculty University of Bengkulu (Indonesia)
Riwandi, Riwandi, University of Bengkulu (Indonesia)
Riwandi, Riwandi, Faculty of Agriculture, University of Bengkulu, 38371A, Indonesia PT Perkebunan Nusantara VII (Persero) Bengkulu, Indonesia (Indonesia)
Riyanto, Damasus (Indonesia)
Riyanto, Damasus, Jogyakarta Assessment Institute for Agricultural Technology, IndonesianAgency for Agricultural Research and Development,Jalan Stadion Maguwohardjo 22 Karang Sari, Sleman, D.I.Jogyakarta (Indonesia)
Riza, Sativandi, Soil Departement of Agriculture Faculty, Brawijaya University, Jl. Veteran No. 1, Malang, East Java Indonesia; (Indonesia)
Rochayati, Sri, Indonesian Soil Research Institute Jl. Tentara Pelajar No 12, Bogor, Indonesia (Indonesia)
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Romelah, Siti, Postgraduate Study Program of Environmental Sciences, University of Lampung Departmentof Biology, Faculty of Mathematics and Natural Sciences, University of Lampung, Jl. Sumantri Brojonegoro No. 1, Bandar Lampung, Indonesia (Indonesia)
Rorong, Johnly Alfreds, Department of Chemistry, Faculty of Mathematical and Sciences University of Sam Ratulangi, Jl. Kampus Unsrat Kleak Manado, North Sulawesi (Indonesia)
Rosadi, Bustomi, Agricultural Engineering Department, Lampung University, Jl Sumantri Brojonegoro No. 1 Bandarlampung 35145, INDONESIA. (Indonesia)
Rosjidi, Mochamad, The National Research and Innovation Agency, Jakarta Pusat 10340, Indonesia (Indonesia)
Rosniawati, Santi, Department of Agronomy, Faculty of Agriculture, Universitas Padjadjaran Jl. Raya Bandung – Sumedang, Km. 21 Jatinangor Sumedang, Indonesia (Indonesia)
Rusastra, I Wayan, Pusat Penelitian dan Pengembangan Sosial Ekonomi, Badan Penelitian dan Pengembangan Pertanian, Departemen Pertanian (Indonesia)
Russell, Craig, School of Earth and Geographycal Science, The University of Western Australia, Crawley 6009 (Australia)
sa'diyah, zenny faridatus, Brawijaya University (Indonesia)
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