“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)”, J. Sains. Kes, vol. 6, no. 3, pp. 385–391, Nov. 2024, doi: 10.30872/hv784643.