widiastuti, rina (2019) “Formulation and Physical Stability Test of Peel-Off Gel Mask Ethanol Extract of Avocado Leaf (Persea americana Mill) with PVA-HPMC Matrix”, JURNAL ILMU KESEHATAN BHAKTI SETYA MEDIKA, 4, pp. 14-28. doi: 10.56727/bsm.v4i.68.