1. Department of Mathematics, University of Management and Technology, Lahore 54770, Pakistan
2. Department of Applied Mathematics, University of Rajshahi, Bangladesh
3. Department of Operations Research, Faculty of Graduate Studies for Statistical Research, Cairo University, Giza 12613, Egypt
4. Department of Mathematics, College of Science and Arts, Qassim University, Al-Badaya 51951, Saudi Arabia
5. Department of Mathematics, COMSATS University Islamabad, Vehari Campus, Pakistan