1. Department of Mathematics, Thal University, Bhakkar, Punjab 30000, Pakistan
2. Institute of Mathematics, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan, Punjab 64200, Pakistan
3. Department of Computer Science and Mathematics, Lebanese American University, Beirut, Lebanon
4. Department of Mathematics, Bursa Uludag University, Gorukle 16059, Turkey
5. Department of Mathematics, Jahangirnagar University, Savar, Dhaka, Bangladesh