1. Department of Arts and Sciences, Bangladesh Army University of Science and Technology, Saidpur 5310, Bangladesh
2. Department of Mathematics, Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh
3. Department of Mathematics, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalgonj 8100, Bangladesh
4. Neighborhood of Akcaglan, Imarli Street, Number: 28/4, 26030, Eskisehir, Turkey