BYCHKOV, O.; SMIELOV, B. USING GSM AUTHORIZATION FOR DISTANCE LEARNING SYSTEM. Journal of Information Technologies in Education (ITE), [S. l.], n. 7, p. 086–089, 2010. DOI: 10.14308/ite000183. Disponível em: https://ite.kspu.edu/index.php/ite/article/view/518. Acesso em: 24 nov. 2024.