College of Science, Hunan City University, Yiyang, P. R. China
Department of Mathematics, Huzhou University, Huzhou, P. R. China
[Ghaffar, Abdul] Department of Mathematics, Faculty of Science, Ghazi University, D. G. Khan, Pakistan
[Ghani, Muhammad Usman] Department of Mathematics, Khawaja Fareed University of Engineering & Information Technology, Rahim Yar Khan, Punjab, Pakistan
Department of Computer Engineering, Biruni University, Istanbul, Turkey
