ЕГОРОВ, О. В.; ЧИЧ, Е. А. Innovation in Oil: yesterday, today and tomorrow. Journal of Economic Research & Business Administration, [S. l.], v. 90, n. 2, p. 111–114, 2015. Disponível em: https://be.kaznu.kz/index.php/math/article/view/633. Acesso em: 24 nov. 2024.