1. Laboratory of Pure and Applied Mathematics, University of Amar Telidji Laghouat, Laghouat, Algeria
2. Universidad Tecnológica de MÉxico UNITEC, Campus Ecatepec, Ecatepec de Morelos, Mexico
3. Department of Mathematics, College of Sciences and Arts, ArRas, Qassim University, Buraydah, Saudi Arabia
4. Department of Mathematics, College of Sciences, Juba University, Juba, Sudan