1. Department of Mathematics, Institute of Numerical Sciences, Gomal University, Dera Ismail Khan, KPK, Pakistan
2. Department of Mathematics and Statistics, Jordan University of Science and Technology, Irbid, Jordan
3. Department of Mathematics, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
4. Department of Mathematics, Research Institute for Natural Sciences, Hanyang University Seoul, Republic of Korea