Fendy Wellen, Sukmawati Tansil Tan, Yohanes Firmansyah, and Hendsun Hendsun. “Correlation Between Facial Skin Damage Due to UV Exposure and Facial Skin Porphyrin Level: Study on Students of SMA Kalam Kudus II Jakarta, Indonesia”. Bioscientia Medicina : Journal of Biomedicine and Translational Research 6, no. 18 (February 1, 2023): 2948-2952. Accessed September 16, 2024. https://bioscmed.com/index.php/bsm/article/view/737.