L. KURMANGALIYEVA. THEORETICAL AND METHODOLOGICAL FOUNDATIONS OF THE STUDY OF INCOMES OF THE POPULATION AND THEIR FORMATION. «Вестник НАН РК», [S. l.], v. 403, n. 3, p. 497–506, 2023. DOI: 10.32014/2023.2518-1467.529. Disponível em: http://89.250.84.46/bulletin-science/article/view/5639. Acesso em: 23 дек. 2024.