1. Department of Estate Management, Faculty of the Built Environment, University of Malaya, 50603 Kuala Lumpur, Malaysia
2. School of the Built Environment, University of Ulster, Jordanstown campus, Shore Road, Newtownabbey, Co. Antrim, BT37 0QB, United Kingdom
3. Department of Estate Management, Faculty of Architecture, Planning & Surveying, University of Technology Mara, 40450 Shah Alam, Selangor, Malaysia