Iafrancesco V., G. M. (2011). Some problems of research on education and pedagogy in Colombia: Strategies to deal them and resolve them. Universidad Pedagógica y Tecnológica de Colombia.
Lua i Stíl Chicago (17ú heag.)Iafrancesco V., Giovanni M. Some Problems of Research on Education and Pedagogy in Colombia: Strategies to Deal Them and Resolve Them. Universidad Pedagógica y Tecnológica de Colombia, 2011.
Lua MLA (9ú heag.)Iafrancesco V., Giovanni M. Some Problems of Research on Education and Pedagogy in Colombia: Strategies to Deal Them and Resolve Them. Universidad Pedagógica y Tecnológica de Colombia, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.