ORDÓÑEZ ARMIJOS, E., & ZEVALLOS ABARCA, D. (2011). A study guide for the mastery of grammatical structures and the improvement of the english language learning with the students of the ninth year of basic education at “Manuel Cabrera Lozano” high school. Motupe extension. Academic year 2009 - 2010.
Cita Chicago (17th ed.)ORDÓÑEZ ARMIJOS, EDWIN, i DANNY ZEVALLOS ABARCA. A Study Guide for the Mastery of Grammatical Structures and the Improvement of the English Language Learning with the Students of the Ninth Year of Basic Education at “Manuel Cabrera Lozano” High School. Motupe Extension. Academic Year 2009 - 2010. 2011.
Cita MLA (9th ed.)ORDÓÑEZ ARMIJOS, EDWIN, i DANNY ZEVALLOS ABARCA. A Study Guide for the Mastery of Grammatical Structures and the Improvement of the English Language Learning with the Students of the Ninth Year of Basic Education at “Manuel Cabrera Lozano” High School. Motupe Extension. Academic Year 2009 - 2010. 2011.