Effectiveness of E-Procurement Policy in Procurement Planning at the Public Works and Spatial Planning Departmentof Baubau City. PROVIDER JURNAL ILMU PEMERINTAHAN, [S. l.], v. 5, n. 1, p. 22–34, 2026. DOI: 10.59713/aap79n75. Disponível em: https://ejurnal.unisan.ac.id/index.php/projip/article/view/1667. Acesso em: 5 sep. 2026.