1. Department of Mathematics, Abdul Wali Khan University, Mardan 23200, Pakistan
2. School of Railways and Infrastructure Development, University of Mines and Technology (UMaT) Essikado, Sekondi-Takoradi, Ghana
3. Department of Mathematics, College of Science and Humanitiesin Alkharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia