Adawiyah, R. (2019). Penentuan Nilai Sun Protection Factor secara In Vitro pada Ekstrak Etanol Akar Kalakai (Stenochlaena palustris Bedd) dengan Metode Spektrofotometer UV-Vis: Determination of In Vitro Sun Protection Factor Value on Ethanol Extract of Kalakai Root (Stenochlaena palustris Bedd) with UV-Vis Spectrophotometer Method. Jurnal Surya Medika (JSM), 4(2), 26–31. https://doi.org/10.33084/jsm.v4i2.604