2026. 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, 1 (Jan. 2026), 1–10. DOI:https://doi.org/10.33759/jrki.v8i1.909.