1. Department of Mathematics and Computer Science High Normal School,IPI laboratory, Sidi Mohamed Ben Abdellah University, Morocco
2. Department of Mathematics and Computer Science / High Normal School / IPI laboratory, Sidi Mohamed Ben Abdellah University, Morocco
3. Computer Science Department / Polydisciplinary Faculty / MASI laboratory, Mohammed First University, Morocco
4. Higher School of Technology / MASI laboratory, Mohammed First University, Morocco