Ibau, M. et al. 2023. Penentuan Nilai Sun Protection Factor (SPF) Ekstrak Etanol Rimpang Kunyit Hitam (Curcuma caesia ROXB.) dengan Metode Spektrofotometri UV-Vis: Determination of the Sun Protection Factor (SPF) Value of Ethanol Extract of Black Turmeric Rhizome (Curcuma caesia ROXB.) Using the Method UV-Vis Spectrophotometry. Proceeding of Mulawarman Pharmaceuticals Conferences. 18, 1 (Dec. 2023), 92–96. DOI:https://doi.org/10.25026/mpc.v18i1.710.