1. Department of Mathematics, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, Bangladesh
2. Department of Arts and Sciences, Bangladesh Army University of Science and Technology, Saidpur Cantonment, Saidpur, Bangladesh
3. Department of Mathematics, University of Rajshahi, Rajshahi, Bangladesh
4. Department of Textile Engineering, Northern University Bangladesh, Dhaka, Bangladesh
5. Rajshahi University of Engineering & Technology, Rajshahi, Bangladesh