1. Department of Statistics Shahjalal University of Science and Technology Sylhet Bangladesh
2. Faculty of Business Studies Bangladesh University of Professionals (BUP) Dhaka Bangladesh
3. Department of Mathematics and Statistics Washington State University Pullman Washington USA
4. Department of Neurosurgery University of Florida College of Medicine Gainesville Florida USA
5. Department of General Educational Development (GED) Daffodil International University Dhaka Bangladesh