Antibacterial Activity of Extract Green Seaweed Ulva intestinalis in North Waters of AcehIrwan irwan, Herwina Herwina, Ramadani Ramadani, Nora Idiawati, Eli Nurliza and Nursafiah NursafiahBIO Web Conf., 87 (2024) 01003DOI: https://doi.org/10.1051/bioconf/20248701003