Khalid A. Khan
Petro Research & Training Institute, Oil & Gas Development Company Ltd, Islamabad, Pakistan
Muneer A. Khan
Petro Research & Training Institute, Oil & Gas Development Company Ltd, Islamabad, Pakistan
G. Akhtar
Quaid-i-Azam University, Islamabad, Pakistan
Z. Ahmed
Quaid-i-Azam University, Islamabad, Pakistan
A. Naveed
Premier OIL, UK