Utomo, N.B.P, et al. “Effect of Enriched Feed by Different N-6 Fatty Acids Levels at 0% of N-3 on Danio Rerio Reproductive Performance”. Jurnal Akuakultur Indonesia, vol. 5, no. 1, Jan. 2007, pp. 51-56, https://doi.org/10.19027/jai.5.51-56.