Widiyanti W, Saleh R, Prihantono P. PENGEMBANGAN INSTRUMEN JOB SAFETY ANALYSIS PADA WORKSHOP PRAKTIK BATU BETON. jpensil [Internet]. 2021Jan.21 [cited 2025Dec.14];10(1):40 -46. Available from: http://103.8.12.212:33180/unj/index.php/jpensil/article/view/17084