Manurung, Edison Hatoguan. “Perencanaan K3 Pekerjaan Bidang Konstruksi”. Jurnal Rekayasa Konstruksi Mekanika Sipil (JRKMS) 3, no. 1 (April 30, 2020): 49–54. Accessed December 22, 2024. https://ejournal.ust.ac.id/index.php/JRKMS/article/view/703.