I. M. Cahyani, T. T. . Tanzaq, R. D. . Agustina, and K. E. . Setiawati, “Formulation and Characterization of Peel-Off Gel Mask Containing Secang (Caesalpinia sappan L.) Wood Extract with Strong Antioxidant Activity”, J Jamu Indo, vol. 10, no. 2, pp. 121–125, May 2025, doi: 10.29244/jji.v10i2.403.