Hasanela, Nurani, and Catherina Manukpadang Bijang. “Antioxidant Activity Test of Ethanol Extract of White Ginger (Zingiber Officinale Var Amarum) Using DPPH Method”. Biofaal Journal 6, no. 2 (November 18, 2025): 114-124. Accessed November 19, 2025. https://ojs3.unpatti.ac.id/index.php/biofaal/article/view/22542.