YUMANG, Fernando; MANTILLAS, Christopher. The Procurement Process in the Barangays of the City of Manila: Examining Practices and Alternative Systems and Problems Towards a Procurement Primer. Journal of Interdisciplinary Perspectives, [S. l.], v. 3, n. 4, p. 452–464, 2025. Disponível em: https://jippublication.com/index.php/jip/article/view/511. Acesso em: 25 feb. 2026.