Formulasi Gel Nanoemulsi Fraksi Aktif Ekstrak Etanol Daun Tembakau (Nicotiana tabacum L.) Dan Uji Aktivitas Terhadap Candida albicans = Nanoemulsion Gel Formulation of Active Fraction of Ethanol Extract from Tobacco Leaves (Nicotiana tabacum L.) and Its Activity Test Against Candida albicans