Forestryana, Dyera, Hidayah, Selfira, Saputri, Revita, AND Ramadhan, Hafiz. " Study of Formulation, Stability and Effectiveness of Gel Hand Sanitizer Ethanol Extract 80% Akar Kuning (Arcangelisia flava (L.) Merr.)" JURNAL ILMU KEFARMASIAN INDONESIA [Online], Volume 20 Number 2 (30 October 2022)