XIANGSHENG, K. An SOA Approach to Virtual Classroom with Content Repurposing. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 9, n. 1, p. pp. 61–65, 2014. DOI: 10.3991/ijet.v9i1.3064. Disponível em: https://online-journals.org/index.php/i-jet/article/view/3064. Acesso em: 8 feb. 2023.