Raharjo A, Januar Ariyanto, Farahul Jannah. Comparative Analysis of OHS Professional Certification Systems: A Scoping Review. JGRPH [Internet]. 2026 Jun. 29 [cited 2026 Jun. 29];11(1):48-61. Available from: https://www.jgrph.org/index.php/JGRPH/article/view/627