Korelasi Kadar Fenol dan Flavonoid terhadap Indeks Aktivitas Antioksidan Ekstrak Batang Vernonia amygdalina: Correlation of Phenol and Flavonoid Content with Antioxidant Activity Index of Vernonia amygdalina Stem Extracts. J. Sains. Kes [Internet]. 2024 Nov. 15 [cited 2025 May 9];5(5):652-8. Available from: http://jsk.ff.unmul.ac.id/index.php/JSK/article/view/561