1. Jinnah College for Women, University of Peshawar, Khyber Pakhtunkhwa, Pakistan
2. Department of Mathematics, Kohat University of Science and Technology, Khyber Pakhtunkhwa, Pakistan
3. College of Computer Science, King Khalid University, Abha, Saudi Arabia
4. Department of Economics, Kohat University of Science and Technology, Khyber Pakhtunkhwa, Pakistan