1. Bishop, D. V. M. (1983). The Test for Reception of Grammar (TROG). Manchester, England.
2. Buckley, S. (1985). Attaining basic educational skills: Reading, writing and number. In D. Lane & B. Stratford (Eds.), Current approaches to Down’s syndrome (pp. 315–343). New York: Praeger Press.
3. Cardoso-Martins, C., & Frith, U. (2001). Can individuals with Down syndrome acquire alphabetic literacy skills in the absence of phoneme awareness? Reading and Writing: An Interdisciplinary Journal, 14, 361–375.
4. Cardoso-Martins, C., Michalick, M. F., & Pollo, T. C. (2002). Is sensitivity to rhyme a developmental precursor to sensitivity to phoneme?: Evidence from individuals with Down syndrome. Reading and Writing: An Interdisciplinary Journal, 15, 439–454.
5. Cardoso-Martins, C., Michalick, M. F., & Pollo, T. C. (2006). O papel do conhecimento do nome das letras no início da aprendizagem da leitura: Evidência de indivíduos com síndrome de Down. (The role of letter name knowledge in beginning reading acquisition: Evidence from individuals with Down syndrome). Psicologia: Reflexão e Crítica, 19, 53–59.