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2. Badrulzaman Jaafar, Ismail Said, Mohd Hisyam Rasidi, (2011). Evaluating the Impact of Vertical Greenery System on Cooling Effect on High Rise Buildings and Surroundings: A Review. Skudai, Johor, Malaysia: Senvar 12 2011. Retrieved from www.epublication.fab.utm.my/180/1/SENVAR1201.pdf.
3. Bostwick, E.A. (2008). Going Green with Public Art: Considering Environmental Standards in Public Art Policies. University of Oregon. Retrieved from https://scholarsbank.uoregon.edu/xmlui/handle/1794/6576.
4. Chin Mui Yoon. (2010, September). Wrapped in life-giving green. The Star online. Kuala Lumpur. Retrieved from http://thestar.com.my/lifestyle/story.asp?file=/2010/9/26/lifeliving/6948675.
5. Chrysalis arts. (n.d.). Public Art Sustainability Assessment.