Khairunnisa, Khairunnisa, et al. “Formulasi Dan Uji Stabilitas Fisik Facial Wash Ekstrak Daun Sepat (Mitragyna Speciosa Kroth)”. Innovative: Journal Of Social Science Research, vol. 3, no. 5, Nov. 2023, pp. 9832-41, https://j-innovative.org/index.php/Innovative/article/view/6059.