3Bialystok, E. & Hakuta, K. In Other Words." The Science and Psychology of Second-language Acquisition [M]. New York: Basic Books, 1994.
4Birdsong, D. Ultimate attainment in second language acquisition [J]. Language, 1992, 68: 706-755.
5Birdsong, D. Age and second language acquisition and processing: A selective overview [A]. In M. G. P. Indefrey (ed.) The Cognitive Neuroscience of Second Language Acquisition [C]. Malden, MA: Blackwell Publishing, 2006: 9-49.
6Chiswick, B. & Miller, P. The critical period hypothesis for language learning: What the 2000 US Census says [R]. Bonn: The Institute for the Study of Labor (IZA), 2007.
7Hakuta, K. & Bialystok, E. & Wiley, E. January. Critical evidence: A test of the critical-period hypothesis for second-language acquisition [J]. PSYCHOLOGICAL SCIENCE, 2003, 14(1).
8Johnson, J. S. & Newport, E. L. Critical period effects in second-language learning [J]. Cognitive Psychology, 1989(21): 60-99.
9Marinova-Todd, S., Bradford Marshall, D. & Snow, C. Three misconceptions about age and 12 learning [J]. Spring. TESOL Quarterly, 2000, 34(1): 9-34.
10McLaughlin, B. Myths and misconceptions about second language learning: What every teacher needs to unlearn [R]. University of California, Santa Cruz: NATIONAL CENTER FOR RESEARCH ON CULTURAL DIVERSITY AND SECOND LANGUAGE LEARNING, 1992.