1. Department of Mathematical Sciences, College of Science, Princess Nourah bint Abdulrahman University 1 , P.O. Box 84428, Riyadh 11671, Saudi Arabia
2. Department of Mathematics and Statistics, College of Science, King Faisal University 2 , Hofuf, Al Ahsa 31982, Saudi Arabia
3. Department of Mathematics, Al Zaytona University of Science and Technology 3 , Salfit, Palestine
4. Department of Computer Science and Mathematics, Lebanese American University 4 , Beirut, Lebanon
5. Department of Mathematics, Govt. Maulana Zafar Ali Khan Graduate College Wazirabad, Higher Education Department, Govt. of Punjab 5 , Lahore 54000, Pakistan
6. 6 Department of Mathematics, National College of Business Administration and Economics, Lahore 54660, Pakistan