1. Department of Mathematics, University of Management and Technology, Lahore, Pakistan
2. College of Computer Science and Information Technology, University of Anbar, Anbar, Ramadi, Iraq
3. College of Agriculture, Al-Muthanna University, Samawah, Iraq
4. Computer Science Department, College of Sciences and Humanities, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
5. College of Physics and Electronic Information Engineering, Zhejiang Normal University, Jinhua, China