Browse Author Index

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Riadi, Selamat, Universitas Negeri Medan (Indonesia)
Risfandi, Marsal, Universitas Negeri Medan (Indonesia)
Ritonga, Husni Muharram, Universitas Negeri Medan (Indonesia)
Ritonga, Husni Muharram, Universitas Pembangunan Pancabudi Medan (Indonesia)
Ritonga, Husni Muharram, Universitas Pembangunan Panca Budi Medan (Indonesia)
Ritonga, Mara Untung, Universitas Negeri Medan (Indonesia)
Riwanda, Febby, Universitas Pembangunan Pancabudi Medan (Indonesia)
Rizky, M Chaerul, Universitas Pembangunan Pancabudi Medan (Indonesia)
Robain, Wilchan, Universitas Pembangunan Pancabudi Medan (Indonesia)
Rohani, Rohani, Departement of Geography Education, Faculty of Social Science, Universitas Negeri Medan, Medan, Indonesia (Indonesia)
Rohmah, Wendra G., Agro-industrial Technology Department, Universitas Brawijaya, Malang, Indonesia (Indonesia)
Rosmayati, Rosmayati, Agrotechnology Department, Agriculture Faculty, University of North Sumatera, Medan, Indonesia (Indonesia)
Rozanna, T. Mira, University of Sumatera Utara (Indonesia)
Rulyandari, Rochana, Universitas Ahmad Dahlan (Indonesia)
Ruslan, Dede, Universitas Negeri Medan (Medan State University), Medan, Indonesia (Indonesia)
Ruslan, Dede, Department of Bussiness Administration Education, Faculty of Economics, Medan State University, Medan, Indonesia (Indonesia)
Ruslan, Dede, Universitas Sumatera Utara (Indonesia)
Rusmaini, Rusmaini, Universitas Pamulang (Indonesia)

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