Rujukan Sungai_Pasig

  1. ↑ Vicente B. Tuddao Jr. (September 21, 2011). "Water Quality Management in the Context of Basin Management: Water Quality, River Basin Management and Governance Dynamics in the Philippines" (PDF). www.wepa-db.net. Department of Environment and Natural Resources. Dicapai 10 April 2017. 
  2. ↑ (Laguna de Bay) Lake Elevation – Laguna Lake Development Authority
  3. ↑ Laguna de Bay Masterplan – Laguna Lake Development Authority
  4. ↑ Roberts, Edmund (1837). Embassy to the Eastern Courts of Cochin-China, Siam and Muscat. New York: Harper & Brothers. m/s. 59. 
  5. ↑ Ocampo, Ambeth (2012). Looking Back 6: Prehistoric Philippines. Mandaluyong City, Philippines: Anvil Publishing, Inc. m/s. 51–56. ISBN 978-971-27-2767-2. 
  6. 1 2 Postma, Antoon (June 27, 2008). "The Laguna Copper-Plate Inscription: Text and Commentary". Philippine Studies. Ateneo de Manila University. 40 (2): 182–203.