Hartika, Y. ., Saputra, R., Pakpahan, N. H. ., Darmawan, D. ., & Putra, A. R. . (2023). A Study on the Falsification of Health Certificates: Perspective of Criminal Law and Professional Ethics. Journal of Social Science Studies, 3(2), 175-180. https://jos3journals.id/index.php/jos3/article/view/268