1. Department of Mathematics, Shaheed Benazir Bhutto University Sheringal, Dir Upper 18000, Khybar Pakhtunkhwa, Pakistan
2. CONACyT-Tecnologico Nacional de Mexico/CENIDET, Interior Internado Palmira S/N, Col. Palmira, C. P. 62490, Cuernavaca, Morelos, Mexico
3. Department of Mathematics and General Sciences, Prince Sultan University, P. O. Box 66833, 11586 Riyadh, Saudi Arabia
4. Department of Medical Research, China Medical University, Taichung 40402, Taiwan
5. Department of Computer Science and Information Engineering, Asia University, Taichung, Taiwan