Hidayani, Andi, Yushinta Fujaya, Dody Trijuno, and Siti Aslamyah. 2016. “Cow’s Testicles Flour As the Natural Hormone Masculinization of Siamese Fighting Fish, Betta Splendens Regan, 1910”. Jurnal Iktiologi Indonesia 16 (1), 91-101. https://doi.org/10.32491/jii.v16i1.52.