Dueñas Macías, F. A. (2013). Learner-Centered Curriculum: A Step Towards English Speaking Skill Improvement of Non-English Teachers. Universidad Pedagógica y Tecnológica de Colombia.
Lua i Stíl Chicago (17ú heag.)Dueñas Macías, Fredy Alonso. Learner-Centered Curriculum: A Step Towards English Speaking Skill Improvement of Non-English Teachers. Universidad Pedagógica y Tecnológica de Colombia, 2013.
Lua MLA (9ú heag.)Dueñas Macías, Fredy Alonso. Learner-Centered Curriculum: A Step Towards English Speaking Skill Improvement of Non-English Teachers. Universidad Pedagógica y Tecnológica de Colombia, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
