Oliveira, Rodolfo Olinto Rotoli Garcia, et al. “Allele and Genotype Frequency for Milk Beta-Casein in Dairy Cattle in the Northern Region of Tocantins State, Brazil”. Brazilian Journal of Veterinary Research and Animal Science, vol. 58, Dec. 2021, p. e186603, https://doi.org/10.11606/issn.1678-4456.bjvras.2021.186603.