1. Department of Mathematics and Statistics, University of Agriculture, Faisalabad 38000, Punjab, Pakistan
2. Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
3. Department of Accounting, College of Business Administration in Hawtat Bani Tamim, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
4. Mathematics Department College of Science, Jouf University, P.O. Box 2014, Sakaka, Saudi Arabia
5. Department of Mathematics, Faculty of Science, Minia University, Minia 61519, Egypt
6. Department of Statistics and Operations Research, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
7. Helwan University, Faculty of Science, Department of Mathematics, Cairo, Egypt
8. Department of Mathematics, Faculty of Science, Tanta University, Tanta 31527, Egypt