1. Housing Department, “Housing in Figures”, Hong Kong Housing Authority, 2015, p. 2.
2. Two Houses in Seoul;Cho,2008
3. Influencing factors of the deflection of floor sound insulation system;Lee;J. Arch. Inst. Korea,2013
4. https://www.env.go.jp/en/air/noise/noise.html.
5. ACT Parliamentary Counsel, “Environment Protection Act 1997”, 1997.