Widanarni, . et al. 2013. Selection of nitrification and denitrification bacteria with its application in culture medium of Pacific white shrimp (Litopenaeus vannamei). Jurnal Akuakultur Indonesia. 9, 2 (Mar. 2013), 184–195. DOI:https://doi.org/10.19027/jai.9.184-195.