Comparison of the SPF Values of 70% and 96% Ethanol Extracts of Bandotan Leaves (Ageratum conyzoides L.) Using the UV-Vis Spectrophotometric Method. JFM [Internet]. 2026 Apr. 30 [cited 2026 May 6];8(2):785-92. Available from: https://ejournal.medistra.ac.id/index.php/JFM/article/view/3456