1. Department of Mathematics and Statistics, Hazara University, Mansehra, Pakistan
2. Army Burn Hall College for Girls, Abbottabad, Pakistan
3. School of Management Science and Engineering, Shandong University of Finance and Economics, China
4. Deakin-SWU Joint Research Centre on Big Data, School of Information Technology Deakin University, VIC 3125, Australia
5. Department of Mathematics, Faculty of Science and Arts, Muhayl Asser, King Khalid University, Saudi Arabia
6. Department of Mathematics and Computer, Faculty of Science, IBB University, IBB, Yemen
7. Department of Mathematics, Abbottabad University of Science & Technology, Abbottabad, Pakistan