1. I. Cameron, R. Duff, B. Hare, Integrated Gateways: Planning out Health and Safety Risk. Research Report 263, Glasgow Caledonian University, UK, 2004.
2. Project change management system;Ibbs;Journal of Management in Engineering, ASCE,2001
3. F.M. Arain, S.P. Low, Lesson learned from past projects for effective management of variation orders for Educational Building Projects, in: Proceedings of the MICRA 4th Annual Conference, Kuala Lumpur, Malaysia, ISBN: 9831002539, 2005a, pp. 10-1–10-18.
4. Potential barriers in management of refurbishment projects;Arain;Journal of Independent Studies and Research,2005
5. The potential effects of variation orders on institutional building projects, facilities;Arain;Emerald,2005