1. Department of Mathematics and Natural Sciences Prince Mohammad Bin Fahd University Khobar Saudi Arabia
2. Department of Quantitative Methods, College of Business Administration Imam Abdulrahman Bin Faisal University Dammam Saudi Arabia
3. Department of Mathematics National Institute of Technology, Uttarakhand Srinagar Uttarakhand India
4. Department of Humanities and Basic Sciences MCS, National University of Sciences and Technology Islamabad Pakistan
5. Department of Mathematics and Statistics The University of Lahore Lahore Pakistan