Volume 32, Issue 4, December 2013, Pages 33-47
10.30492/ijcce.2013.6743
Afzal Ahmad; Muhammad Imran Ahmad; Muhammad Younas; Hayat Khan; Mansoor ul Hassan Shah
Volume 30, Issue 2, June 2011, Pages 101-117
10.30492/ijcce.2011.6291
Hayat Khan; Mohammad Younas