Suprayudi, Muhammmad Agus, Dini Harianto, and Dedi Jusadi. 2013. “The Effect of Phytase Levels in the Diet on the Digestibility and Growth Performance of White Shrimp Litopenaeus Vannamei”. Jurnal Akuakultur Indonesia 11 (2), 103-8. https://doi.org/10.19027/jai.11.103-108.