1. Department of Computer Science, Benue State University, Makurdi, Benue State, Nigeria
2. Department of Computer Science and Engineering, Obafemi Awolowo University, Ile-Ife, Nigeria
3. INTECU, Obafemi Awolowo University, Ile-Ife, Nigeria
4. Laboratoire LARIT, Cocody Danga, Abidjan, Cote D’Ivoire