S. K. Abugaliyev, Yu. A. Yuldashbayev, A. D. Baimukanov, & L. R. Bupebayeva. (2019). EFFICIENT METHODS IN BREEDING DAIRY CATTLE OF THE REPUBLIC OF KAZAKHSTAN. «Вестник НАН РК», (4), 65–82. извлечено от http://189185.vm7pq.group/bulletin-science/article/view/1486