1. BROWN, H. D. Language Pedagogy. 3 ed. White Plains, New York: Longman, 2007. 558 p.
2. BYGATE, M., SKEHAN, P.; SWAIN, M. Rsearching pedagogic tasks: Second language learning, teaching, and testing. London: Longman, 2001. 368 p.
3. CUBILLO, P.; BRENES, C. Using task-based instruction in an ESP course in the Computer Center at the University of Costa Rica. Actualidades Investigativas en Educación, Costa Rica, v. 9, n. 1, p.1-25, abr. 2009.
4. Available in:https://www.researchgate.net. Accessed in: 12 jan. 2020.
5. CROOKES, G. Task classification: A cross-disciplinary review. Honolulu: University of Havaii at Manoa, 1986.94 p.