1. Laboratory of Analysis, Geometry and Applications, Ibn Tofail University, Kenitra, Morocco
2. National School of Business and Management, Sultan Moulay Slimane University, Beni Mellal, Morocco
3. Laboratory of Engineering Sciences for Energy (LabSIPE), the National School of Applied Sciences of El Jadida (ENSAJ), Beni Mellal, Morocco
4. Laboratory of Engineering Mathematics (LIM), Tunisia Polytechnic School, University of Carthage, La Marsa, Tunisia