Bowey, J.A.& Francis, J.(1991). Phonological analysis as a function of age and exposure to reading instruction.Applied Psycholinguistics, 12, 91-121.
Branum-Martin, L., Fletcher, J.M., Carlson, C.D., Ortiz, A., Carlo, M., & Francis, D.J.(2006). Bilingual phonological awareness: Multilevel construct validation among Spanish-speaking kindergarteners in transitional bilingual education classrooms.Journal of Educational Psychology, 98, 170-81.