Tamara N, Angkasa C, Novalinda Ginting C, Chiuman L, Ehrich Lister IN. Determination Sunscreen Potential Based on Sunflower Seed Oil (Helianthus Annuus) in Cream Preparation With Combination of Oxybenzone and Octyl Methoxycinnamate by in Vitro Method. ASRJETS-Journal. 2019;60(1):33-39. Accessed September 12, 2025. https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/5160