Aula, Heppy Ridhatul, Dewi Kurniasih, and Farizi Rachman. 2021. “Psychological Capital Impacts on Safety Behavior of Contractor Workers Using the SEM Method”. The Indonesian Journal of Occupational Safety and Health 10 (2):180-87. https://doi.org/10.20473/ijosh.v10i2.2021.180-187.