Rachmawati, Tika Karlina, UIN Sunan Gunung Djati Bandung
Rachmawati, Yemima Indah, Department of Mathemnatic Education, Universitas PGRI Adi Buana Surabaya
Radite, Ramadian, Universitas Negeri Yogyakarta
Rahayuningsih, Sri, Department of Mathematics Education, STKIP YPUP Makassar
Ratnasari, Dwi, STMIK Bumigora Mataram
Razak, Firda, Department of Mathematics Education, STKIP Andi Matappa Pangkep
Razak, Rafiza Abdul, Department of Curriculum and Instructional Technology, University of Malaya
Rejeki, Sri, Universitas Muhammadiyah Surakarta
Rejeki, Sri, Department of Mathematics Education, Universitas Muhammadiyah Surakarta, INDONESIA
Retnowati, Endah, State University of Yogyakarta
Retnowati, Endah, Department of Mathematics Education, Yogyakarta State University,
Retutas, Mildin Jeminez, College of Teacher Education and Technology, University of Southeastern Philippines, Philippines
Reyhani, Ebrahim, Faculty of Science, Shahid Rajaee Teacher Training University, Islamic Republic of Iran
Rianasari, Veronika Fitri, Department of Mathematics Education, Sanata Dharma University
Rifandi, Ronal, STKIP Adzkia
Rochmad, Rochmad, Department of Mathematics Education, Universitas Negeri Semarang
Rosjanuardi, Rizky, Department of Mathematics Education, Universitas Pendidikan Indonesia, Indonesia
Rubio, Marilyn Torela, College of Education, Bukidnon State University, Philippines
Rubowo, Maya Rini, Universitas PGRI Semarang
Rusmar, Irfan, Department of Agribusiness Crude Palm Oil, Politeknik Teknologi Kima Industri Medan