Yustina, Yustina, and Alfi Sophian. “Development and Validation of HPLC–Photodiode Array Method for Detecting Steroids in Skin Whitening Products Simultaneously ”. Indonesian Journal of Pharmacy 34, no. 1 (March 31, 2023). Accessed December 4, 2023. https://journal.ugm.ac.id/v3/IJP/article/view/3530.