1. Groupe de Mécanique, Matériaux et Acoustique, P.B: 454, 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, Rabat, Morocco
3. Department of Mechanical Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia