1. Department of Computer Science, Iqra National University Peshawar, Peshawar 25100, Pakistan
2. Department of Mechatronics Engineering, UET Peshawar, Peshawar 25000, Pakistan
3. eLearning and Distance Education, King Faisal University, Al-Ahsa 7057, Saudi Arabia
4. Department of Computer Science, Al Ain University, Abu Dhabi P.O. Box 112612, United Arab Emirates
5. Department of Computer Science, King Khalid University, Abha 61421, Saudi Arabia