JUSADI, DEDI, et al. “EFFECT OF PHYTASE SUPPLEMENTATION IN SOYBEAN MEAL BASED DIET ON NUTRIENT DIGESTIBILITY AND GROWTH PERFORMANCE OF GREEN CATFISH (Hemibagrus Nemurus)”. BIOTROPIA, vol. 15, no. 2, July 2011, doi:10.11598/btb.2008.15.2.70.