Mual, Billy Christ, and Frando Simon Hukom. “Implementasi K3 Di Laboratorium Aspal Teknik Sipil Politeknik Negeri Ambon”. Innovative: Journal Of Social Science Research 5, no. 4 (July 30, 2025): 5220–5232. Accessed September 8, 2026. https://j-innovative.org/index.php/Innovative/article/view/20824.