Singapore Zoo http://en.wikipedia.org/wiki/Singapore_Zoo http://eresources.nlb.gov.sg/infopedia/articles/SIP_403_2005-01-19.html http://www.zoo.com.sg http://www.wrscf.org.sg/ http://conservation.wrs.com.sg/local/wildlife-health.html http://www.zoo.com.sg/thehornesttruth/     Singapore Botanic Gardens http://www.sbg.org.sg http://herbaria.plants.ox.ac.uk/bol/sing AsiaOne News. (2011, May 23). Brunei working with S’pore to update plant database. The Brunei Times. Retrieved from http://news.asiaone.com/News/Latest+News/Asia/Story/A1Story20110523-280176.html Balick, M. J., Elisabetsky, E., & Laird, S. A. (1996). Medicinal Resources of the Tropical Forest: Biodiversity and Its Importance to Human … Continue reading References