NURFADILAH, Hilda; NOFRIYALDI, Ali; SUSANTI, Susanti. Formulation and SPF Evaluation of Gel Preparations Containing Ethanol Extract of Guava Leaves (Psidium guajava L.). Jurnal Sains dan Teknologi Farmasi Indonesia, Indonesia, v. 15, n. 1, p. 46–55, 2026. Disponível em: https://e-journal.stfi.ac.id/index.php/jstfi/article/view/132. Acesso em: 22 oct. 2026.