Vargas Vásquez, J. M., & Zúñiga Coudin, R. (2018). Graphic organizers as a teaching strategy for improved comprehension of argumentative texts in English. Universidad de Costa Rica.
Čikaški stil citiranja (17. izdanje)Vargas Vásquez, José Miguel, i Randolph Zúñiga Coudin. Graphic Organizers as a Teaching Strategy for Improved Comprehension of Argumentative Texts in English. Universidad de Costa Rica, 2018.
MLA način citiranja (9. izdanje)Vargas Vásquez, José Miguel, i Randolph Zúñiga Coudin. Graphic Organizers as a Teaching Strategy for Improved Comprehension of Argumentative Texts in English. Universidad de Costa Rica, 2018.
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