1. Department of Mathematics, Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
2. Department of Mathematics and Statistics, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
3. Department of Mathematics Education, Akenten Appiah Menka University of Skills Training and Entrepreneurial Development (Kumasi Campus), Ghana
4. Department of Mathematics and Statistics, Hazara University, Mansehra, 21120 Khyber Pakhtunkhwa, Pakistan