1. Department of Mathematics and Computer Science, Faculty of Science, Menoufia University, Egypt. E-mail: elzoghdy@yahoo.com
2. Department of Information Technology, College of Computer and Information Technology, Taif University, Saudi Arabia. E-mail: alzoghdy@tu.edu.sa
3. Department of Software Engineering, College of Computer and Information Sciences, King Saud University, Saudi Arabia. E-mail: ghoneim@ksu.edu.sa