Purbiantoro, Wahyu, UtomoNur Bambang Priyo, and SudrajatOman Agus. 2014. “THE ADDITION OF Ulva Reticulata AS A STIMULANT INTO ARTIFICIAL FEED ON THE GONAD CONDITION OF THE COLLECTOR SEA URCHIN (Tripneustes Gratilla LINNAEUS 1758)”. Jurnal Ilmu Dan Teknologi Kelautan Tropis 6 (1). https://doi.org/10.29244/jitkt.v6i1.8628.