Zarwinda, Irma, et al. “Study of Bengkuang Mask Formulation (PachyrhizusErosus L) With Ethanol Extract of Sweet Potato Leaves (Ipomoea Batatas L) As Antioxidant”. Jurnal Kedokteran Dan Kesehatan : Publikasi Ilmiah Fakultas Kedokteran Universitas Sriwijaya, vol. 7, no. 1, Jan. 2020, pp. 76-83, https://doi.org/10.32539/jkk.v7i1.135.