P. A. Z. . Hasibuan, S. Sumaiyah, and D. H. . Siregar, “Formulation and Evaluation of Body Scrub Cream Containing Ethanol Extract of Black Cumin Seeds (Nigella sativa L.) and Coffee Grounds (Coffea arabica L.) as Anti-aging”, Indonesian J. of Pharmaceutical and Clinical Res., vol. 5, no. 2, pp. 09–17, Dec. 2022.