JOHNS, Beverley H.; CROWLEY, E. Paula; GUETZLOE, Eleanor. Engaged Time in the Classroom. Focus on Exceptional Children, [S. l.], v. 41, n. 4, 2017. DOI: 10.17161/foec.v41i4.6836. Disponível em: https://journals.ku.edu/focusXchild/article/view/6836. Acesso em: 13 apr. 2025.