Perbedaan Aktivitas dan Kadar Antioksidan Larutan Ekstrak Daun Jeruk Purut (Citrus Hystrix) dan Larutan Cuka Apel Malang (Malus Pumila Mill) = Differences in Antioxidant Activity and Levels of Kaffir Lime Leaf Extract Solution (Citrus Hystrix) and Malang Apple Vinegar Solution (Malus Pumila Mill)