Mahmood, Shahid
Ahmad, Qazi Zahoor
Srivastava, H. M.
Khan, Nazar
Khan, Bilal
Tahir, Muhammad
Funding for this research was provided by:
Sarhad University of Science and IT (abc)
Article History
Received: 15 January 2019
Accepted: 11 March 2019
First Online: 2 April 2019
Competing interests
: The authors declare that they have no competing interests.