ASSESSMENT AND HAZARDS IDENTIFICATION ANALYSIS RISK CONTROL IN WELDING WORKSHOP SMK NEGERI 2 PEKANBARU. Al Insyirah International Scientific Conference on Health, [S. l.], v. 2, n. 1, p. 392–402, 2021. Disponível em: https://jurnal.ikta.ac.id/aisch/article/view/1533. Acesso em: 4 jun. 2026.