Raja Kamarudin, Raja Petra (13 May 2003). "On May 13, 1969". Little Speck. Archived from the original on 25 September 2006. Retrieved 10 September 2006.
"History & Origins". Bangsar Community Portal. 2 December 2008. Archived from the original on 3 April 2009. Retrieved 1 June 2009.
"History of IKU". Institute for Public Health. 2007. Archived from the original on 27 January 2011. Retrieved 2 June 2009.
Raja Kamarudin, Raja Petra (13 May 2003). "On May 13, 1969". Little Speck. Archived from the original on 25 September 2006. Retrieved 10 September 2006.