HILTZ, Starr Roxanne. Impacts of college-level courses via Asynchronous Learning Networks: Some Preliminary Results. Online Learning, Boston, MA, v. 1, n. 2, 2019. DOI: 10.24059/olj.v1i2.1934. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/1934. Acesso em: 25 mar. 2026.