1. kwara state university, Malete, college of pure and applied science, department of physics, Nigeria
2. Department of Fundamental and Applied Sciences, Universiti Tecknologi, Petronas, Malaysia
3. Mechanical Engineering Department Universiti Teknologi PETRONAS 32610 Seri Iskandar Perak, Malaysia
4. Department of Pure and Applied Physics Ladoke Akintola University of Technology Ogbomoso, Nigeria
5. Lead City University Depart of Physical Science, Ibadan Oyo state , Nigeria