Penentuan Nilai Sun Protection Factor (SPF) Ekstrak Etil Asetat Daun Sirih Hutan (Piper aduncum) Sudarman Rahman, Yahya Febrianto, Jenny Blessia Gerung, Shesanthi Citrariana, Thathit Suprayogi, Mu’afa Purwa Arsana, Awalul Fatiqin, Rokiy Alfanaar Lansau: Jurnal Ilmu Kefarmasian Vol. 3 No. 1 2025 DOI 10.33772/lansau.v3i1.38