Camargo Uribe, Juan Arturo. “Geopolitical Implications of the Thelephone Bogota – Medellin, Inaugurated in 1926”. Folios, revista de la Facultad de Comunicaciones y Filología, no. 27 (August 29, 2012): 123–137. Accessed February 2, 2025. https://revistas.udea.edu.co/index.php/folios/article/view/12770.