1. Department of Quantity Surveying, Faculty of Built Environment & Surveying, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia
2. Faculty of Built Environment, Universiti Malaya, Kuala Lumpur 50603, Malaysia
3. Mahaweli Authority of Sri Lanka, Maduruoya 51108, Sri Lanka
4. Department of Civil Engineering, College of Engineering, Northern Border University, Arar 91431, Saudi Arabia
5. Faculty of Civil Engineering Technology, Universiti Malaysia Pahang, Kuantan 26300, Malaysia
6. General Educational Development, Daffodil International University, Dhaka 1341, Bangladesh