Araya, K. A. (2007). Teaching materials: A critical position about the role they play in the language classroom. Universidad de Costa Rica.
Cita Chicago Style (17a ed.)Araya, Karla Araya. Teaching Materials: A Critical Position About the Role They Play in the Language Classroom. Universidad de Costa Rica, 2007.
Cita MLA (8a ed.)Araya, Karla Araya. Teaching Materials: A Critical Position About the Role They Play in the Language Classroom. Universidad de Costa Rica, 2007.
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