Analysis of modern condition ofpurebredcattle in program «Sybaga» of Republic of Kazakhstan. Journal of Economic Research & Business Administration, [S. l.], v. 105, n. 5, p. 74–80, 2015. Disponível em: https://be.kaznu.kz/index.php/math/article/view/471. Acesso em: 13 jul. 2026.