Ritonga, Arya Widura, Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor
Ritonga, Arya Widura, Department of Agronomy and Horticulture, Faculty of Agriculture, Institut Pertanian Bogor, Bogor, West Java 16680, Indonesia
Ritonga, Halimahtussaddiyah, Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Halu Oleo, Kampus Hijau Bumi Tridharma, Anduonohu, Kec. Kambu, Kota Kendari, Sulawesi Tenggara 93232 Indonesia telp. (0811)4058886
Ritonga, Halimahtussaddiyah, Universitas Halu Oleo Kampus Hijau Bumi Tridharma Andounohu, Kambu Kota Kendari, Sulawesi Tenggara, 93232, Indonesia
Ritonga, Nisma Khairani, Pemerintah Kabupaten Serdang Bedagai
Ritonga, Putra Diandro Utama, Fakultas Kedokteran Universitas Muhammadiyah Sumatera Utara
Ritonga, Utan Sahiro, Universitas Muhammadiyah Bandung
Ritu, Tanvina Islam, Department of Soil Science, Faculty of Biological Sciences, University of Chittagong, Chattogram
Ritung, Sofyan, Indonesian Center for Agricultural Land Resources Research and Development, Bogor, Indonesia
Riva’I Riatayasyah, Kiss Yanuar

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