1. Boerger Pumps Asia Pe Limited, 2004. http://www.wba-tanks.de.
2. Guidelines for reduction of construction waste on building sites, Faculty of Construction and Land use, Department of Building and Real Estate;Cheung,1993
3. Civil Engineering Department, 1998. Final report for the review of the public filling strategy and programme. Civil Engineering Department, Mouchel Asia Limited.
4. Environmental Protection Department, 2006. http://www.info.gov.hk/epd.
5. Environmental Transport and Works Bureau, 2006. http://www.wb.gov.hk.