W. K. Sari, R. S. . Kristantri, and T. H. . Pebriani, “SPF Activity Sunscreen Spray Gel Ethanol Extract of Cinnamon Bark (Cinnamomum burmanii Ness. BI, Syn)”, J. Akademika Kimia, vol. 12, no. 2, pp. 132-141, May 2023.