Kristiana A, Rawar E, Yuhara NA. Formulation and Determination of SPF Value of Sunscreen Spray with Cymbopogon Nardus L. Essential Oil. Jurnal EduHealth [Internet]. 2025 Dec. 29 [cited 2026 Jun. 19];16(04):1934-46. Available from: https://ejournal.seaninstitute.or.id/index.php/healt/article/view/7720