R. O. R. G. Oliveira, “Allele and genotype frequency for milk beta-casein in dairy cattle in the northern region of Tocantins State, Brazil”, Braz. J. Vet. Res. Anim. Sci., vol. 58, p. e186603, Dec. 2021, doi: 10.11606/issn.1678-4456.bjvras.2021.186603.