Agnette Tjendanawangi and Nicodemus Dahoklory 2020. Gonad quality of sea urchin Tripneustis gratilla with different seaweed diets. Jurnal Akuakultur Indonesia. 18, 2 (Jan. 2020), 214-221. DOI:https://doi.org/10.19027/jai.18.2.214-221.