VALENCIA, C. J.; CALOPEZ, J. M. .; CARBOS, R. .; ANGULUNA, M. .; TAMON, C.-J. . Effectiveness of Voluntary Community Service to Maintain Cleanliness of Tullahan River in Nitang, Novaliches, Quezon City. Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research, [S. l.], v. 2, n. 1, 2020. Disponível em: https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/1260. Acesso em: 19 mar. 2024.