1. Mathematics Department, College of Science, King Khalid University, Abha, Saudi Arabia
2. College of Computer Science & Information Technology Jazan University, Jazan, Saudi Arabia
3. Department of Mathematics, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan
4. Department of Mathematics, Riphah Institute of Computing and Applied Sciences, Riphah International University Lahore, Pakistan