Antibacterial Activity of Coastal Plants and Marine Sponges from Kei Island Indonesia against Bacterial Fish Pathogens, Hamdillah, Andi, Isnansetyo Alim, Istiqomah Indah, Puspita Indun Dewi, Handayani Desy Putri, and Kaneko Takushi , Pharmacognosy Journal, July 2019, Volume 11, Issue 4, p.812-817, (2019)