Astuti, Putu Nadi, et al. “Evaluating Safety Culture Maturity in Indonesian Petrochemical Industry to Strengthen Occupational Health Systems ”. Media Publikasi Promosi Kesehatan Indonesia (MPPKI), vol. 8, no. 8, Aug. 2025, pp. 595-08, doi:10.56338/mppki.v8i8.7393.