Tài liệu tham khảo

"Review of Verbal behavior" by Skinner.

Verbal Behavior. New York: Apleton-Century-Crofts (Skinner 1957).

Bilingualism and Special Education: Issues in Assessment and Pedagogy.

How languages are learned. Oxford (Lightbrown & Spada 2013).

Second Language Acquisition and Second Language Learning. University of Southern California (Krashen 1981).