Toha, A.H.A., Pramana, A., Sumitro, S.B., Hakim, L. and Widodo 2012. PENENTUAN JENIS KELAMIN BULU BABI Tripneustes gratilla SECARA MORFOLOGI. BERKALA PENELITIAN HAYATI JOURNAL OF BIOLOGICAL RESEARCHES. 17, 2 (Jun. 2012), 211-215. DOI:https://doi.org/10.23869/224.