1. Department of Sciences and Humanities, National University of Computer & Emerging Sciences FAST Lahore, Pakistan
2. Department of Mathematics, Islamia College University Peshawar, Pakistan
3. Department of Mathematics, Khawaja Fareed University of Engineering & Information Technology, Rahim Yar Khan, Pakistan
4. Department of Mathematics, Nigeria Maritime University, Okerenkoko, Delta State, Nigeria
5. Department of Mathematics, Faculty of Science and Technology, American International University Bangladesh, Dhaka 1229, Bangladesh