A. Wahid, B. . Yuliana, R. . Alyidrus, and R. I. . Pratiwi, “FORMULATION AND ACTIVITY TESTS OF ANTI-ACNE GEL ETHANOL EXTRACT OF AVOCADO LEAVES (Persea americana Mill) AGAINST Propionibacterium acne: FORMULASI DAN UJI AKTIVITAS SEDIAAN GEL ANTI JERAWAT EKSTRAK ETANOL DAUN ALPUKAT (Persea americana Mill) TERHADAP Propionibacterium acne”, jophus, vol. 4, no. 02, pp. 49–56, Feb. 2023.