JOHNSON, Evelyn S.; SEMMELROTH, Carrie L. Validating an Observation Protocol to Measure Special Education Teacher Effectiveness. Journal of the American Academy of Special Education Professionals, [S. l.], v. 10, n. 3, p. 99–119, 2015. DOI: 10.64546/jaasep.286. Disponível em: https://www.aasep.org/article/view/286. Acesso em: 23 sep. 2025.