A. Nainggolan, A. O. S. Sudrajat, N. B. P. U. Utomo, and E. H. Harris, “Ovarian Maturation in Asian Catfish (Clarias sp.) by Combination Oodev and Nutrition Addition Spirulina plantesis”, IJSBAR, vol. 15, no. 1, pp. 564–583, May 2014.