1. Department of Mathematics, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
2. The Interdisciplinary Research Center in Construction and Building Materials, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
3. Department of Mathematical Sciences, Bayero University Kano, Kano, Kano State, Nigeria
4. The Preparatory Year Program, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia