Rojas Fernández, I. (2008). Error correction techniques: Variety, effectiveness, and stuents' attitude in an english as a foreing language class in Costa Rica. Universidad de Costa Rica, Facultad de letras, Escuela de Lenguas Modernas.
Lua i Stíl Chicago (17ú heag.)Rojas Fernández, Ivannia. Error Correction Techniques: Variety, Effectiveness, and Stuents' Attitude in an English as a Foreing Language Class in Costa Rica. San José, Costa Rica: Universidad de Costa Rica, Facultad de letras, Escuela de Lenguas Modernas, 2008.
Lua MLA (9ú heag.)Rojas Fernández, Ivannia. Error Correction Techniques: Variety, Effectiveness, and Stuents' Attitude in an English as a Foreing Language Class in Costa Rica. Universidad de Costa Rica, Facultad de letras, Escuela de Lenguas Modernas, 2008.