Budi Nursanto, E., R. Wijaya, and A. Permata Sari. “Flavonoid Extraction From Papaya (Carica Papaya L.) Seed Using Ultrasound – Assisted Extraction Method and Determination of Its SPF Value”. Journal of Emerging Supply Chain, Clean Energy, and Process Engineering, vol. 2, no. 1, Apr. 2023, pp. 75-84, doi:10.57102/jescee.v2i1.60.