“Analysis of Rhodamin B Levels in Lipbalms Sold Online Using Uv-Vis Spectrophotometry ”. JURNAL FARMASIMED (JFM) 7, no. 1 (October 31, 2024): 111–117. Accessed August 7, 2025. https://ejournal.medistra.ac.id/index.php/JFM/article/view/2352.