F. Fitrya, N. A. Fithri, A. Amriani, A. Haryati, and D. P. Wijaya, “Preparation and Characterization of Petai Pods Extract (Parkia speciosa Hassk.) Loaded Ethosomes”, sci. technol. indones., vol. 6, no. 1, pp. 19–24, Jan. 2021.