Ritonga, Doris Apriani, Universitas Negeri Medan (Indonesia)
Riza, Ade Ros, Universitas Negeri Medan (Indonesia)
Rodrigues, Renata Viviane Raffa, Universidade Federal da Grande Dourados (UFGD) (Brazil)
Rodriguez, Sarah L., Texas A&M University - Commerce (United States)
Rodriguez, Sarah L, Iowa State University
Rodriguez, Sarah L., Virginia Tech (United States)
Roehrig, Gillian
Roehrig, Gillian, University of Minnesota (United States)
Rogers, Meredith Park
Romanenko, Svetlana, S.Seifullin Kazakh Agro Technical University (Kazakhstan)
Rosen, Jeff, Georgia Institute of Technology
Rosheim, Kay, University of Minnesota
Rosidah, Noneng Siti, Universitas Ibn Khaldun Bogor (Indonesia)
Rosnelli, Rosnelli, Universitas Negeri Medan (Indonesia)
Ross, Kathleen M.
Rosyadi, Abdul Rahmat, Universitas Ibn Khaldun Bogor (Indonesia)
Rover, Diane, Iowa State University
Rukmana, Erni, Universitas Negeri Medan (Indonesia)
Rushall, Amy, Northern Arizona University (United States)
Rustiadi, Tri, Universitas Negeri Semarang (Indonesia)
Rusyid, Husnul Khatimah, Universitas Pendidikan Indonesia (Indonesia)
Ryabova, Ekaterina, Abai Kazakh National Pedagogical University (Kazakhstan)

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