SHAFFER, Steven C. System Dynamics in Distance Education and a Call to Develop a Standard Model. The International Review of Research in Open and Distributed Learning, [S. l.], v. 6, n. 3, 2006. DOI: 10.19173/irrodl.v6i3.268. Disponível em: https://www.irrodl.org/index.php/irrodl/article/view/268. Acesso em: 31 aug. 2024.