SENYAWA FLAVONOID DARI EKSTRAK METANOL BATANG Nephrolepis radicans (Burm.) Kuhn dan UJI AKTIVITAS PENDAHULUAN ANTIOKSIDAN (FLAVONOID COMPOUND from METANOL EXTRACT Of Nephrolepis radicans (Burm.) Kuhn FERN’S STEM and PRELIMINARY TEST AS ANTIOXIDANT) - RINDA INTAN PRADITA, EMMY Rinda Intan; Jurusan Kimia FMIPA Universitas Negeri Surabaya (UNESA Journal of Chemistry, 2012)