1. Department of Mathematics, Dicle University, Diyarbakir, Turkey
2. Department of Mathematics, College of Sciences and Arts, Qassim University, Ar Rass, Saudi Arabia
3. Laboratory of Fundamental and Applied Mathematics of Oran (LMFAO), University of Oran, 1, Oran, 31000 Oran, Algeria
4. Preparatory Institute for Engineering Studies in Sfax, Tunisia