Normaidah, N. et al. 2024. The Antityrosinase Activity of Mitragyna speciosa Korth Leaf Ethanolic Extract. Jurnal Ilmiah Kesehatan (JIKA). 6, 1 (Apr. 2024), 129–138. DOI:https://doi.org/10.36590/jika.v6i1.761.