Sulistyowati, Dwi Andriani, and Agung Susetiyono. 2023. “The Impact of Competency Certification Training For Occupational Health Safety Experts (K3) of Smes And Technology Startups on Companies”. Journal Research of Social Science, Economics, and Management 3 (2):470-80. https://doi.org/10.59141/jrssem.v3i02.429.