1. School of Information Science and Technology, Yunnan Normal University , Kunming , , China
2. School of Natural Sciences (SNS), National University of Sciences and Technology (NUST) , Sector H-12 , Islamabad , Pakistan
3. Department of Computer Science (RCET), University of Engineering and Technology , Lahore , Pakistan
4. Department of Natural Sciences & Humanities (RCET), University of Engineering and Technology , Lahore , Pakistan
5. Faculty of Physical and Numerical Sciences, Abdul Wali Khan University Mardan , Mardan Pakistan