Тuralin А.; Тuralinа Z. To the question of healthy nutrition of schoolchildren of the Northern region of Kazakhstan. Journal of Economic Research & Business Administration, [S. l.], v. 106, n. 6, p. 73–76, 2015. Disponível em: https://be.kaznu.kz/index.php/math/article/view/494. Acesso em: 24 nov. 2024.