Analysis of proximate, amino acid and fatty acid on Phyrella sp. (sea cucumber) from Demak waters, Central Java, IndonesiaSeka Indah Apriliani, Widianingsih Widianingsih, Agus Trianto, Retno Hartati, Wilis Ari Setyati and Sri SedjatiBIO Web Conf., 136 (2024) 04003DOI: https://doi.org/10.1051/bioconf/202413604003