1. Overview of Building Energy Conservation Activities in ASEAC;Levine,1989
2. Energy Survey of Commercial Buildings in Singapore;Siang;Public Utilities Board (PUB) R&D J.,1993
3. Building Control Division, Building Control (Space, Light and Ventilation) Regulations, Ministry of National Development, Singapore, 1979 (Revised as the ‘Building Control Act6’, 1989).
4. Singapore Standard CP 24, Code of Practice for Energy Conservation in Building Services, Part 1: Coefficient of Performance of Air-conditioning Equipment,1982