“Determination of the Sun Protection Factor (SPF) of Ethanol Extract Gel from Arumanis Mango Leaves (Mangifera Indica L. Var. Arumanis) As a Sunscreen Using the UV-Vis Spectrophotometry Method”. Jurnal Riset Kefarmasian Indonesia 8, no. 1 (January 29, 2026): 1–10. Accessed November 6, 2026. http://jurnalfarmasi.or.id/index.php/jrki/article/view/909.