Rajendran, Ramalakshmi, Rajapalayam Rajus' college
Ramane, Harishchandra S., Karnatak University, Dharwad
Ramdani, Rismawati, UIN Sunan Gunung Djati Bandung
Rarasati, Anisa, Institut Teknologi Bandung
Ratnayake, Jayampathy, Faculty of Engineering Sri Lanka Institute of Information Technology Malambe Sri Lanka.
Rehman, Masood Ur, University of Science and Technology of China (USTC), School of Mathematical Sciences.
Rius-Font, Miquel
Rosyida, Isnaini, Department of Mathematics Faculty of mathematics and Natural Sciences Universitas Negeri Semarang