Retana Hernández, K. (2021). Challenges and opportunities developing original digital english teaching material in pandemic times. Universidad Nacional de Costa Rica.
Citace podle Chicago (17th ed.)Retana Hernández, Karla. Challenges and Opportunities Developing Original Digital English Teaching Material in Pandemic Times. Universidad Nacional de Costa Rica, 2021.
Citace podle MLA (9th ed.)Retana Hernández, Karla. Challenges and Opportunities Developing Original Digital English Teaching Material in Pandemic Times. Universidad Nacional de Costa Rica, 2021.
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