, P. P. B. J. N. J. , S. S. , P. A. P. E-Learning Portal Using Social Networking Features. International Journal on Recent and Innovation Trends in Computing and Communication, [S. l.], v. 6, n. 4, p. 161–165, 2018. DOI: 10.17762/ijritcc.v6i4.1537. Disponível em: https://ijritcc.org/index.php/ijritcc/article/view/1537. Acesso em: 27 jan. 2022.