Leonhardt, C. M. R. (2006) “Karyotypical characterization from stock of Nile tilapia, Oreochromis niloticus, at Londrina State University, PR, Brazil, through several techniques of chromosomes band”, Semina: Ciências Agrárias, 27(4), pp. 679–684. doi: 10.5433/1679-0359.2006v27n4p679.