Ortiz Díaz, Shirley Lariss and Canales Solórzano, Josefa Elliette (2003) Economical, Social and Educative factors that influence the students drop out in the English degree at UNAN – Managua. Otra thesis, Universidad Nacional Autónoma de Nicaragua, Managua.
Soza Castillo, Jimmy Clifford and Bermudez Marquez, Juan G. (2003) Analysis of motivational strategies in 11th grade students of English class at Amistad Quebec School in Teustepe, Boaco. Otra thesis, Universidad Nacional Autónoma de Nicaragua, Managua.