Novita, Lenny, and Erwin Dyah Nawawinetu. 2018. “RISK ASSESSMENT OF OVERHEAD CRANE (OHC) DOUBLE GIRDER OPERATION IN THE KAPAL NIAGA DIVISION IN PT PAL INDONESIA (PERSERO)”. Journal of Vocational Health Studies 2 (1):1-7. https://doi.org/10.20473/jvhs.V2.I1.2018.1-7.