Dela Paz, C. J. V. (September 2, 2014). "Plan seeks to untangle gridlock". Business World. New Manila, Quezon City, Philippines: BusinessWorld Publishing Corporation. Archived from the original on November 28, 2019. Retrieved September 18, 2014.
Part 2 – Employer's Requirements(PDF). METRO MANILA SUBWAY PROJECT PHASE 1 Package CP106: E&M Systems and Track Works (Report). Department of Transportation (Philippines). Archived(PDF) from the original on April 30, 2021. Retrieved February 14, 2022.
"Notice of Award"(PDF). METRO MANILA SUBWAY PROJECT PHASE 1 Package CP106: E&M Systems and Track Works. Department of Transportation (Philippines). September 24, 2021. Archived(PDF) from the original on February 14, 2022. Retrieved February 14, 2022.
Part 2 – Employer's Requirements(PDF). METRO MANILA SUBWAY PROJECT PHASE 1 Package CP106: E&M Systems and Track Works (Report). Department of Transportation (Philippines). Archived(PDF) from the original on April 30, 2021. Retrieved February 14, 2022.
Dela Paz, C. J. V. (September 2, 2014). "Plan seeks to untangle gridlock". Business World. New Manila, Quezon City, Philippines: BusinessWorld Publishing Corporation. Archived from the original on November 28, 2019. Retrieved September 18, 2014.
"Notice of Award"(PDF). METRO MANILA SUBWAY PROJECT PHASE 1 Package CP106: E&M Systems and Track Works. Department of Transportation (Philippines). September 24, 2021. Archived(PDF) from the original on February 14, 2022. Retrieved February 14, 2022.
(The Philippines) MEGA MANILA INFRASTRUCTURE ROADMAP (Long Ver.). JICAChannel02: The Official Global Channel of the Japan International Cooperation Agency (JICA). Japan International Cooperation Agency (JICA), Republic of the Philippines National Economic Development Authority (NEDA). June 10, 2014.