1. Theoretical Physics Group, Department of Physics, University of Uyo, Uyo, Nigeria
2. Department of Physical Sciences, Landmark University, Omu-Aran, Nigeria
3. Department of Physics, Federal University of Petroleum Resources, Effurun, Nigeria
4. Department of Physics, Akwa Ibom State University, Uyo, Nigeria
5. Department of Physics, Cross River University of Technology, Calabar, Nigeria
6. Department of Mathematics, Instituto Federal do Sudeste de Minas Gerais, Juiz de Fora, Brazil
7. Theoretical Physics Group, Department of Physics, University of Calabar, Calabar, Nigeria
8. Department of Physics, College of Science, Sultan Qaboos University, Muscat, Sultanate of Oman
9. Theoretical Physics Group, Department of Physics, University of Port Harcourt, Port Harcourt, Nigeria