1. Department of Computer Science, Lead City University, Ibadan, Nigeria
2. Department of Mathematics, Abdul Wali Khan University Mardan, Khyber Pakhtunkhwa 23200, Pakistan
3. Department of Chemistry, Division of Biology (Microbiology), University College of Qunfudah, Umm Al-Qura University, Qunfudah, Saudi Arabia
4. Department of Mathematics, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
5. Department of Mathematics and Statistics, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
6. Department of Computer Science and Mathematics, Mountain Top University, Prayer City, Ogun State, Nigeria