Bilingual Education/バイリンガル教育

Wong Fillmore, L. (1991). When learning a second language means losing the first. Early Childhood Research Quarterly 6: 323-46.

Winsler, A., Diaz, M., & Espinosa, L. (1997). Learning a Second Language Does Not Mean Losing the First: A Replication and Follow-up of Bilingual Language Development in Spanish-Speaking Children Attending Bilingual Preschool. Retrieved on November 17, 2009 from http://www.eric.ed.gov/ERICWebPortal/contentdelivery/servlet/ERICServlet?accno=ED412768.