APA (7th ed.) Citation

Gustavo, T., & Gregorio, J. Improving Students' English through Problems-Solving Activities. Universidad Nacional de Colombia.

Chicago Style (17th ed.) Citation

Gustavo, Torres, and Julio Gregorio. Improving Students' English Through Problems-Solving Activities. Universidad Nacional de Colombia.

MLA (9th ed.) Citation

Gustavo, Torres, and Julio Gregorio. Improving Students' English Through Problems-Solving Activities. Universidad Nacional de Colombia.

Warning: These citations may not always be 100% accurate.