Caro Lopera, M. A., & García Zambrano, L. P. (2020). Argumentative Trends in Opinion Columns in Two High Circulation Colombian Newspapers. Universidad Pedagógica y Tecnológica de Colombia.
Chicago-čujuhus (17. p.)Caro Lopera, Miguel Angel, juo Liliana Patricia García Zambrano. Argumentative Trends in Opinion Columns in Two High Circulation Colombian Newspapers. Universidad Pedagógica y Tecnológica de Colombia, 2020.
MLA-čujuhus (9. p.)Caro Lopera, Miguel Angel, juo Liliana Patricia García Zambrano. Argumentative Trends in Opinion Columns in Two High Circulation Colombian Newspapers. Universidad Pedagógica y Tecnológica de Colombia, 2020.
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