JuniorM. Z., NaufalM. R., SetiawatiM., HardiantoD., and Alimuddin,. “The Sex Ratio and Testosterone Levels in Tilapia Immersed in Different Doses of 17α-Methyltestosterone”. Jurnal Akuakultur Indonesia, Vol. 16, no. 1, July 2017, pp. 51-59, doi:10.19027/jai.16.1.51-59.