Charry Joya, Carlos Andrés. “Unirismo and Pluma Libre. Expressions and Transformations of Gaitanist Newspapers of 1930’s”. Sociedad y Economía, no. 38 (September 15, 2019). Accessed November 24, 2024. https://sociedadyeconomia.univalle.edu.co/index.php/sociedad_y_economia/article/view/7134.