Junior, M. Zairin, A. Yunianti, R.R.S.P.S. Dewi, and Kusman Sumawidjaja. 2007. “Effect of Exposure Time of Pregnant Females Guppies, Poecilia Reticulata Peters, in 17a-Methyltestosterone Solution on Sex Ratio of Their Offsprings”. Jurnal Akuakultur Indonesia 1 (1): 47-54. https://doi.org/10.19027/jai.1.47-54.