Peñaloza, Anna, y Ana Rallón. Dear Someone: Connecting Medical Students and Rural Elementary School Students Through Pen Pal Letters. ENLETAWA JOURNAL 11, no. 2 (julio 18, 2019): 13-29. Accedido junio 23, 2021. https://revistas.uptc.edu.co/index.php/enletawa_journal/article/view/9793.