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pubmed.ncbi.nlm.nih.gov
Farver, J.; Lonigan, C.; Eppe, S. (2009). "Effective early literacy skill development for young Spanish-speaking English language learners: An experimental study of two methods". Child Development. 80 (3): 703–719. doi:10.1111/j.1467-8624.2009.01292.x. PMID19489898.