CHIGARKINA, O. A.; KALMENOV, M. T. Priorities of development of oil and gas branch Republic of Kazakhstan. Journal of Economic Research & Business Administration, [S. l.], v. 103, n. 3, p. 99–104, 2015. Disponível em: https://be.kaznu.kz/index.php/math/article/view/242. Acesso em: 24 nov. 2024.