1. National High School for Marine Sciences and Coastal (ENSSMAL), Dely Ibrahim University Campus, Bois des Cars, B.P. 19, 16320, Algiers, Algeria
2. Department of Computer Science and Mathematics, Lebanese American University, Beirut, Lebanon
3. Siirt University, Art and Science Faculty, Department of Mathematics, 56100 Siirt, Turkey
4. Near East University, Mathematics Research Center, Department of Mathematics, Near East Boulevard, PC: 99138, Nicosia/Mersin 10, Turkey
5. Institute for Groundwater Studies, Faculty of Natural and Agricultural Sciences, University of the Free State, South Africa
6. Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan