1. Life & Industrial Systems Thermal Engineering-Team (LISTE-T), Research Unit of Mechanics and Physical Systems Modeling (UR-2MSP), Department of Physics/Faculty of Sciences, University of Dschang, Dschang, Cameroon
2. Institute of Technology Fotso-Victor Bandjoun, Bandjoun, Cameroon
3. Department of Physics, Higher Teacher Training College Bambili, University of Bamenda, Bamenda, Cameroon