Pratiwi, Divya Indah, et al. “Penghambatan Enzim Tirosinase Ekstrak Etanol Dari Tiga Varian Daun Kratom (Mitragyna Speciosa Korth): Tyrosinase Enzyme Inhibition of Ethanol Extract of Three Leaf Kratom (Mitragyna Speciosa Korth)”. Jurnal Sains Dan Kesehatan, vol. 6, no. 3, June 2024, pp. 385-91, doi:10.25026/jsk.v6i3.2240.