Fernández Abarca, M. (2004). Interaction in the English classroom; an exploratory study. Universidad de Costa Rica.
Čikaški stil citiranja (17. izdanje)Fernández Abarca, Marianella. Interaction in the English Classroom; an Exploratory Study. Universidad de Costa Rica, 2004.
MLA način citiranja (9. izdanje)Fernández Abarca, Marianella. Interaction in the English Classroom; an Exploratory Study. Universidad de Costa Rica, 2004.
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