1. Professor of Construction Engineering and Management, Dept. of Civil and Environmental Engineering, College of Engineering, King Faisal Univ., Al-Hofuf, Al-Ahsa, Kingdom of Saudi Arabia; formerly, Associate Professor and Head, Dept. of Construction Engineering and Management, School of Civil and Environmental Engineering, National Univ. of Sciences and Technology, Sector H-12, Islamabad 44000, Pakistan (corresponding author).
2. M.S. Student, Construction Engineering and Management, School of Civil and Environmental Engineering, National Univ. of Sciences and Technology, Sector H-12, Islamabad-44000, Pakistan.