WOOLF, B. P.; SOLOWAY, E.; CLANCEY, W. J.; VAN LEHN, K.; SUTHERS, D. Knowledge-Based Environments for Teaching and Learning. AI Magazine, [S. l.], v. 11, n. 4, p. 74, 1990. DOI: 10.1609/aimag.v11i4.875. Disponível em: https://ojs.aaai.org/index.php/aimagazine/article/view/875. Acesso em: 29 nov. 2021.