Tahira, Sidra
Khan, Sarzamin
Samrana, Samrana
Shahi, Lubna
Ali, Imran
Murad, Waheed
Rehman, Zia ur
Azizullah, Azizullah
Article History
Received: 8 February 2018
Revised: 23 July 2018
Accepted: 23 July 2018
First Online: 7 August 2018
Compliance with ethical standards
:
: Authors declare no conflict of interest. The work was a part of M. Phil thesis of Sidra Tahira submitted to Kohat University of Science and Technology, Kohat.