Rakhman, Gumgum Gumelar Fajar, Postgraduate Basic Education Doctoral Program, Faculty of Education, Universitas Negeri Jakarta (Indonesia)
Ramadhani, Muhammad Zaki, Universitas PGRI Madiun (Indonesia)
Ramadhani, Suci, Universitas Tadulako (Indonesia)
Ramdani, Agus, University of Mataram
Ramdani, Agus (Indonesia)
Ramdani, Agus, University of Mataram (Indonesia)
Ramdani, Agus, Program Studi Magister Pendidikan IPA, Pascasarjana, Universitas Mataram
Ramdani, Agus, Program Studi Magister Pendidikan IPA, Pascasarjana, Universitas Mataram (Indonesia)
Ramdani, Agus, Biology Education Department, Faculty of Teacher Training and Education, University of Mataram. Jl. Majapahit No. 62, Mataram, Indonesia. Postal code: 83125 (Indonesia)
Ramdhan, M. Firman, Program Studi Pendidikan Fisika Universitas Muhammadiyah Mataram
Randa, Gusti, Universitas Riau (Indonesia)
Rangkuti, Waslina, Faculty of Mathematics and Natural Sciences, University of Sumatera Utara, Medan (Indonesia)
Ranoptri, Deni, Universitas Negeri Surabaya (Indonesia)
Ratnaya, I Gede, Universitas Pendidikan Ganesha (Indonesia)
Razak, Firdha, Prodi Pendidikan Matematika, STKIP Andi Matappa, Jl. Lamaruddani, Kab. Pangkep, Indonesia 90611
Rezeki, Sri, Universitas Islam Riau (Indonesia)
Riana, Martha, Department of Physics, Faculty of Mathematics and Natural Science, University of Sumatera Utara, Jl. Dr. T. Mansur No 9I, Padang Bulan, Kec. Medan Baru, Medan, Sumatera Utara (Indonesia)
Riana, Martha, STATE UNIVERSITY OF NORTH SUMATERA (Indonesia)
Rianna, Martha, Department of Physics, Faculty of Mathematics and Natural Sciences – University of North Sumatra, Jl. Dr. T. Mansur No.9, Padang Bulan, Kec. Medan Baru, Kota Medan, Sumatera Utara (Indonesia)
Ridho, Ahmad Aziz, Science Education Department, Faculty of Teacher Training and Education, Lamongan Islamic University. Jl. Veteran No. 59A, Lamongan, 62211 (Indonesia)
Ridlo, Zainur Rasyid, University of Jember (Indonesia)
Rifki, Ikfisani Yuniar, Surabaya State University (Indonesia)
Rigusti, Wangsit, Study Program of Mathematics Education, University of Sultan Ageng Tirtayasa (UNTIRTA) Jl. Raya Jakarta KM.4, Panancangan, Serang District, Serang City, Banten 42124, (0254) 280330 (Indonesia)
Risnawati, Risnawati, Universitas Islam Negeri Sultan Syarif Kasim Riau (Indonesia)
Ritonga, Cindy Dwi, Universitas Labuhanbatu (Indonesia)

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