VALLES, A.; MARCO, D. Procurement Practices of Higher Education Institutions in Samar Province . SSU - Digital Archive for Theses and Dissertations, [S. l.], v. 36, n. 1, p. 1–220, 2022. Disponível em: https://datd.ssu.edu.ph/index.php/datd/article/view/215. Acesso em: 24 nov. 2024.