“Studi Pustaka Peningkatan Nilai SPF (Sun Protection Factor) Pada Tabir Surya Dengan Penambahan Bahan Alam: Review: Additional Natural Materials to Enhance SPF (Sun Protection Factor) Value of Sunscreen Product”. Jurnal Sains dan Kesehatan 4, no. 1 (November 14, 2024): 79–88. Accessed March 16, 2025. https://jsk.ff.unmul.ac.id/index.php/JSK/article/view/338.