1. Laboratory of Mathematics and Applied Sciences, University of Ghardaia, Algeria
2. Faculty of Sciences, Saad Dahlab University, Blida 1, Algeria
3. Department of Mathematics, Azarbaijan Shahid Madani University, Tabriz, Iran
4. Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
5. Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan