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Republic of the Philippines. Office of the President. (July 21, 2005). "SONA 2005 Executive Summary". Diarsipkan dari versi asli tanggal 2010-06-16. Diakses tanggal 2015-02-07. Retrieved February 20, 2010 from the Republic of the Philippines Office of the Press Secretary Website.
Gardner, Geoff and Francis Kuhn. (1992). Appropriate Mass Transit in Developing Cities. Paper presented at the 6th World Conference on Transport Research, Lyon, June, 1992. p. 7. Retrieved March 11, 2010 from UK Department for International Development's Transport-Links Website.
Razon, Evangeline M. (June 1998). "The Manila LRTA System"(PDF). Japan Railway and Transport Review. 16: 38–39. Diarsipkan dari versi asli(PDF) tanggal 2009-08-24. Diakses tanggal December 15, 2009.
Republic of the Philippines. Office of the President. (July 21, 2005). "SONA 2005 Executive Summary". Diarsipkan dari versi asli tanggal 2010-06-16. Diakses tanggal 2015-02-07. Retrieved February 20, 2010 from the Republic of the Philippines Office of the Press Secretary Website.