[1] Centre for Advanced Studies in Pure and Applied Mathematics, Bahauddin Zakariya University, University of Minnesota, Multan, Pakistan
[2] Department of Mathematics, University of Management and Technology, Lahore, Pakistan
[3] Department of Mathematics, Cankaya University, Balgat,Ankara, Turkey
[4] Institute of Space Sciences, Magurele,Bucharest, Romania
[5] Department of Medical Research, China Medical University Taichung, Taichung, Taiwan
[6] Department of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia