1. Department of Mathematics, Islamia College Peshawar, Jamrod Road, Peshawar 25120, Khyber Pakhtunkhwa, Pakistan
2. Department of Information Systems, Faculty of Computing and Information Technology (FCIT), King Abdulaziz University, Jeddah 34025, Saudi Arabia
3. Department of Mathematics and Sciences, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi Arabia
4. Department of Mathematics, University of Malakand, Chakdara Dir(L) 18000, Khyber Pakhtunkhwa, Pakistan