E. A. Sianipar, A. Avena, Y. T. Narwati, and R. J. Sagala, “Peel-off Emulgel Mask Formulation from Ethanol Extract of Frankincense Resin for Acne vulgaris Treatment”, TJNPR, vol. 9, no. 1, pp. 213–218, Jan. 2025, doi: 10.26538/tjnpr/v9i1.32.