Turysbekova R., Kereeva A., Tolegenova A., и Kasseinova M. «OPTIMIZATION OF PRODUCTION COSTS OF AGRICULTURAL COOPERATIVES AS A FACTOR IN THE FORMATION OF A STABLE FOOD SUPPLY SYSTEM». «Вестник НАН РК» 1, no. 4 (август 15, 2021): 97–102. просмотрено декабрь 23, 2024. http://89.250.84.46/bulletin-science/article/view/2350.