“Leukocytes Differentiation of Goldfish (Carassius Auratus) Infected With Aeromonas Hydrophila Bacteria and Post-Treatment With Propolis Solution”. Jurnal Natur Indonesia, vol. 19, no. 1, Apr. 2021, pp. 6-12, https://doi.org/10.31258/jnat.19.1.6-12.