ZHAKUPBEKOVA, E. K. Problems of human capital in increasing the labor productivity in Kazakhstan. Journal of Economic Research & Business Administration, [S. l.], v. 95, n. 1, p. 62–65, 2015. Disponível em: https://be.kaznu.kz/index.php/math/article/view/308. Acesso em: 1 sep. 2024.