1. Department of Mathematics and Statistics, International Islamic University, Islamabad, Pakistan
2. Department of Mathematics, Taiz University, Taiz 6803, Yemen
3. Department of Mathematics, Unaizah College of Sciences and Arts, Qassim University, Buraydah 52571, Saudi Arabia
4. Department of Mathematics, Faculty of Science, Sohag University, Sohag 82524, Egypt
5. Department of Mathematics, Çankaya University, Etimesgut 06790, Ankara, Turkey
6. Department of Medical Research, China Medical University, Taichung 40402, Taiwan