Wulandari, Arifah Irna Widyastuti, Ahmad Fuad Masduqi. Antioxidant activity test of ethanol extract of red algae (kappaphyrus alvarezii) green variety from north coasts of Jepara district with DPPH method. Repository [Internet]. 2023Jul.5 [cited 2026Sep.11];. Available from: https://repository.stifar.ac.id/Repository/article/view/540