León, W. U., & Cely, E. V. (2010). Encouraging Teenagers to Improve Speaking Skills through Games in a Colombian Public School. Universidad Nacional de Colombia.
Chicago Style (17th ed.) CitationLeón, William Urrutia, and Esperanza Vega Cely. Encouraging Teenagers to Improve Speaking Skills Through Games in a Colombian Public School. Universidad Nacional de Colombia, 2010.
MLA (9th ed.) CitationLeón, William Urrutia, and Esperanza Vega Cely. Encouraging Teenagers to Improve Speaking Skills Through Games in a Colombian Public School. Universidad Nacional de Colombia, 2010.
Warning: These citations may not always be 100% accurate.