Bernal Numpaque, N. R., & García Rojas, M. A. (2011). TPR-Storytelling. A key to speak fluently in English. Universidad Pedagógica y Tecnológica de Colombia.
Čikaški stil citiranja (17. izdanje)Bernal Numpaque, Nidia Rocío, i Miguel Arcángel García Rojas. TPR-Storytelling. A Key to Speak Fluently in English. Universidad Pedagógica y Tecnológica de Colombia, 2011.
MLA način citiranja (9. izdanje)Bernal Numpaque, Nidia Rocío, i Miguel Arcángel García Rojas. TPR-Storytelling. A Key to Speak Fluently in English. Universidad Pedagógica y Tecnológica de Colombia, 2011.
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