Drackert, A. (2015). Validating language proficiency assessments in second language acquisition research: Applying an argument-based approach. Peter Lang Edition.
Chicago-referens (17:e uppl.)Drackert, Anastasia. Validating Language Proficiency Assessments in Second Language Acquisition Research: Applying an Argument-based Approach. Frankfurt am Main: Peter Lang Edition, 2015.
MLA-referens (9:e uppl.)Drackert, Anastasia. Validating Language Proficiency Assessments in Second Language Acquisition Research: Applying an Argument-based Approach. Peter Lang Edition, 2015.
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