PHILIPPINE JOURNAL OF THIRD WORLD STUDIES, Kasarinlan. Appendix 5.7: Project Completion Report: Philippine National Railways. Kasarinlan: Philippine Journal of Third World Studies, [S.l.], p. 621-624, dec. 2017. ISSN 2012-080X. Available at: <https://www.journals.upd.edu.ph/index.php/kasarinlan/article/view/5930>. Date accessed: 06 aug. 2025.