1. Department of Mathematics, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
2. Department of Basic Sciences and Humanities, Muhammad Nawaz Sharif University of Engineering and Technology, Multan, Pakistan
3. Department of Mathematics, Capital University of Science & Technology, Islamabad, Pakistan
4. Mathematics in Applied Sciences and Engineering Research Group, Scientific Research Center, Al-Ayen University, Nasiriyah, Iraq
5. Department of Mathematics, College of Science, King Khalid University, Abha, Saudi Arabia