Medina Peña, H. (2013). IELTS Test Training for Students in Order to Identify Students’ Perceptions and Progress in the Exam. Universidad Pedagógica y Tecnológica de Colombia.
Čikaški stil citiranja (17. izdanje)Medina Peña, Hilda. IELTS Test Training for Students in Order to Identify Students’ Perceptions and Progress in the Exam. Universidad Pedagógica y Tecnológica de Colombia, 2013.
MLA način citiranja (9. izdanje)Medina Peña, Hilda. IELTS Test Training for Students in Order to Identify Students’ Perceptions and Progress in the Exam. Universidad Pedagógica y Tecnológica de Colombia, 2013.
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