Cost Analysis of the Construction Safety Management System (SMKK) Based on Work Breakdown Structure (WBS) in an Irrigation Project. Journal of Project Management Research, [S. l.], v. 1, n. 2, p. 47–62, 2025. DOI: 10.65303/journalpmresearch.v1i2.35. Disponível em: https://journalpmresearch.com/jpmr/article/view/35.. Acesso em: 27 dec. 2025.