AHMED, S. T.; KADHIM, Q. K.; ALSULTANI, H. S. M.; ABD ALMAHDY, W. S. Applying the MCMSI for Online Educational Systems Using the Two-Factor Authentication. International Journal of Interactive Mobile Technologies (iJIM), [S. l.], v. 15, n. 13, p. pp. 162–171, 2021. DOI: 10.3991/ijim.v15i13.23227. Disponível em: https://online-journals.org/index.php/i-jim/article/view/23227. Acesso em: 18 jan. 2022.