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. J. Sains. Kes [Internet]. 2024 Nov. 14 [cited 2025 Mar. 16];4(1):79–88. Available from: https://jsk.ff.unmul.ac.id/index.php/JSK/article/view/338