Transparency Practices of School Heads: Basis for Retooling of Annual Procurement Plan for PPAs Implementation. Nexus International Journal of Science and Education, [S. l.], v. 2, n. 1, 2025. DOI: 10.5281/zenodo.15323314. Disponível em: https://nijse.org/index.php/home/article/view/254.. Acesso em: 25 oct. 2026.