Jamlaay, Frits, et al. “Ovulation Time and Ovulated Eggs Count of Sneakehead Channa Striata Induced by Prostaglandin 2α With Different Doses”. Jurnal Akuakultur Indonesia, vol. 15, no. 1, Feb. 2016, pp. 89-92, https://doi.org/10.19027/jai.15.89-92.