SPOONER, Fred; COLLINS, Belva; AGRAN, Martin. Fifty Years of Progress in Meeting the Needs of Students with Extensive Support Needs. Journal of Special Education Preparation, [S. l.], v. 6, n. 2, p. 91–104, 2026. DOI: 10.33043/tf7rc6hg4m3. Disponível em: https://openjournals.bsu.edu/JOSEP/article/view/6113. Acesso em: 13 nov. 2026.