DONKOR, Francis. The comparative instructional effectiveness of print-based and video-based instructional materials for teaching practical skills at a distance. The International Review of Research in Open and Distributed Learning, [S. l.], v. 11, n. 1, p. 96–116, 2010. DOI: 10.19173/irrodl.v11i1.792. Disponível em: https://www.irrodl.org/index.php/irrodl/article/view/792. Acesso em: 24 apr. 2024.