TRẦN QUANG ĐỨC; TRẦN THU HÀ; TRẦN MINH SƠN. Teletext System and Its Application in Vietnamese Language Television Broadcasting. Journal of Technical Education Science, [S. l.], v. 2, n. 1, p. 13–21, 2007. Disponível em: https://www.jte.edu.vn/index.php/jte/article/view/957. Acesso em: 7 apr. 2026.