“In Vitro Photoprotective Performance and Physicochemical Characterization of a Herbal Sunscreen Cream Containing White-Fleshed Guava (Psidium guajava L.) and Soursop (Annona muricata L.) Leaf Extracts”, JFFI, vol. 13, no. 1, pp. 19–28, Aug. 2026, doi: 10.33096/jffi.v13i1.qee7sx29.