Batubara, I. et al. 2023. The Effect of Different Hydroponic Types and Nutrient Concentrations on the Chemical Composition and Antioxidant Capacity of Purwoceng (Pimpinella pruatjan) Extract. HAYATI Journal of Biosciences. 30, 5 (Jul. 2023), 985–994. DOI:https://doi.org/10.4308/hjb.30.5.985-994.