Utilization of Moringa Leaf Extract (Moringa Oleifera) against the Ectoparasite Zeylanicobdella sp. on Grouper Fish In In-VitroRaihan Syahrul Maurid, Rika Wulandari, Shavika Miranti, Dwi Septiani Putri, Muzahar Muzahar, Tri Yulianto, Okto Rimandi Bakkara and Henky IrawanBIO Web Conf., 134 (2024) 06009DOI: https://doi.org/10.1051/bioconf/202413406009