Basir, A. et al. 2017. Antibacterial and Antioxidant Activity of Green Algae Halimeda gracilis from Seribu Island District. Jurnal Pengolahan Hasil Perikanan Indonesia. 20, 2 (Aug. 2017), 211–218. DOI:https://doi.org/10.17844/jphpi.v20i2.17507.