1. Department of Physics, Faculty of Science, University of Bamenda, Bamenda, Cameroon
2. Center for Computational Modelling, Chennai Institute of Technology, Chennai, Tamilnadu, India
3. Department of Mechanical Engineering, College of Technology, University of Buea, Buea, Cameroon
4. Center for Nonlinear System, Chennai Institute of Technology, Chennai, Tamilnadu, India
5. Department of Electronics and Communications Engineering, University Centre for Research & Development Chandigarh University, Mohali, Punjab, India
6. Department of Physics, Higher Teacher Training College, University of Bamenda, Bamenda, Cameroon
7. Department of Mechanical and Industrial Engineering, National Higher Polytechnic Institute, University of Bamenda, Bamenda, Cameroon