Schumann, John (Winter 1990). "Extending the Scope of the Acculturation/Pidginization Model to Include Cognition". TESOL Quarterly. 24 (4): 667–684. doi:10.2307/3587114. JSTOR3587114.
jstor.org
Schumann, John (Winter 1990). "Extending the Scope of the Acculturation/Pidginization Model to Include Cognition". TESOL Quarterly. 24 (4): 667–684. doi:10.2307/3587114. JSTOR3587114.
worldcat.org
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Schumann, John H. (1978). The pidginization process : a model for second language acquisition. Rowley, Mass.: Newbury House Publishers. ISBN978-0883770962. OCLC3203534.