Izza Dewangga, Dhanurendra, et al. “Effectiveness of Urea Crystallization Method in the Producting Omega-3 Concentrate from Tuna (Thunnus sp.)”. Jurnal Ilmu Pertanian Indonesia, vol. 31, no. 3, May 2026, pp. 605-10, https://doi.org/10.18343/jipi.31.3.605.