Lara Olivo, L. I., Yumi Guacho, L. M., Padilla Padilla, N. M., & Obregón Mayorga, Á. P. (2023). Linguistics foundations for english speaking.
Lua i Stíl Chicago (17ú heag.)Lara Olivo, Lenin Iván, Lorena Maribel Yumi Guacho, Nelly Margarita Padilla Padilla, agus Ángel Paúl Obregón Mayorga. Linguistics Foundations for English Speaking. 2023.
Lua MLA (9ú heag.)Lara Olivo, Lenin Iván, et al. Linguistics Foundations for English Speaking. 2023.
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