APA aipamena

López-Arellano, H., Vélez-Salazar, M., & Franco-López, J. A. (2017). Perceptions of High School Principals about Teacher Motivation in in the Metropolitan Area of Medellin, 2015.

Chicago Style aipamena

López-Arellano, Hernán, Mauricio Vélez-Salazar, y Jorge Ariel Franco-López. Perceptions of High School Principals About Teacher Motivation in in the Metropolitan Area of Medellin, 2015. 2017.

MLA aipamena

López-Arellano, Hernán, Mauricio Vélez-Salazar, y Jorge Ariel Franco-López. Perceptions of High School Principals About Teacher Motivation in in the Metropolitan Area of Medellin, 2015. 2017.