CABRALES SALAZAR, O.; CENTENO, V. Seven fundamental learnings. Revista Educación y Desarrollo Social, [S. l.], v. 9, n. 2, p. 58–73, 2015. DOI: 10.18359/reds.946. Disponível em: https://revistas.unimilitar.edu.co/index.php/reds/article/view/946. Acesso em: 3 may. 2024.