Septianingrum Y, Safrina U, Puspita N, Surahman S. Gambaran Tingkat Pengetahuan tentang Period After Opening (PAO) dan Perilaku Penyimpanan Kosmetika Perawatan pada Remaja di Kota Tangerang: The Level of Knowledge about Period After Opening (PAO) and Storage Behavior of Cosmetics in Adolescents in Tangerang. J. Sains. Kes. 2024;5(1):6-13. Accessed September 4, 2025. http://jsk.ff.unmul.ac.id/index.php/JSK/article/view/331