1. Ashfaq Ahmad:
College of Computer Science and Information Systems, Jazan University, Jazan, Saudi Arabia
2. Syed Ahtsham Ul Haq Bokhary:
Center for Advanced Studies in Pure and Applied Mathematics, Bahauddin Zakariya University Multan, Pakistan
3. Roslan Hasni:
Department of Mathematics, Faculty of Science and Technology, University Malaysia Terengganu, Kuala Terengganu, Malaysia
4. Slamin:
Mathematics Education Study Program, University of Jember, Indonesia