RudiM.; SukendaS.; WahjuningrumD.; PasaribuW.; HidayatullahD. Seaweed Extract of Gracilaria Verrucosa As an Antibacterial and Treatment Against Vibrio Harveyi Infection of Litopenaeus Vannamei. Jurnal Akuakultur Indonesia 2019, 18, 120-129.