1. Department of Mathematics, College of Science and Humanities in Alkharj, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia
2. Department of Mathematics, Near East University, Nicosia, Cyprus, Turkey
3. Department of Computer Science and Mathematics, Lebanese American University, Beirut, Lebanon
4. Institute of Mathematics, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan