“IN VITRO ANTIOXIDANT ACTIVITY AND GC-MS ANALYSIS OF ETHANOLIC MANGKOKAN LEAVES EXTRACT (Polyscias Balfouriana ( Sander Ex Andre) L.H.Bailey) ”. 2021. JURNAL KATALISATOR 6 (1): 117-25. https://doi.org/10.62769/katalisator.v6i1.270.