Sorto, M. Alejandra, Jeffery H. Marshall, Thomas F. Luschei, y Martin Carnoy. «TEACHER KNOWLEDGE AND TEACHING IN PANAMA AND COSTA RICA: A COMPARATIVE STUDY IN PRIMARY AND SECONDARY EDUCATION ». Revista Latinoamericana de Investigación en Matemática Educativa 12, no. 2 (abril 30, 2009): 251–290. Accedido marzo 17, 2025. https://www.relime.org/index.php/relime/article/view/337.