Polyculture of Giant Freshwater Prawn, Macrobrachium rosenbergii and Nilem Carp, Osteochilus hasselti Cultured in Recirculation System Using BiofiltrationEri Setiadi and Imam TaufikE3S Web Conf., 47 (2018) 02005DOI: https://doi.org/10.1051/e3sconf/20184702005