Soedarjo, M. et al. 2025. The Antioxidant Activities and Phenolic Content of Improved Soybean Seeds Varieties of Different Grain Sizes. IPTEK The Journal for Technology and Science. 31, 1 (Jul. 2025), 83–90. DOI:https://doi.org/10.12962/j20882033.v31i1.4267.