D. Jusadi, E. Gandara, and I. Mokoginta, “Effects of Probiotic Bacillus sp. on Food Convertion and Growth of Catfish Pangasius hypophthalmus”, Jurnal Akuakultur Indonesia, vol. 3, no. 1, pp. 15–18, Apr. 2007, doi: 10.19027/jai.3.15-18.