1. Groupe de Mécanique, Matériaux et Acoustique, Département de Physique, Faculté des Sciences, Université de Ngaoundéré, Ngaoundéré-Cameroun
2. Research Center STIS, Team M2CS, Department of Applied Mathematics and Informatics, ENSET, Mohammed V University in Rabat, Madinat Al Irfane, Rabat, Morocco
3. Faculty of Engineering, Department of Mechanical Engineering, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia