УРУЗБАЕВА, Н. А.; БАЙГУЖИНА, А. Ж. Features of pricing in the field of telecommunications of Kazakhstan. Journal of Economic Research & Business Administration, [S. l.], v. 88, n. 6, p. 94–98, 2015. Disponível em: https://be.kaznu.kz/index.php/math/article/view/853. Acesso em: 1 sep. 2024.