Barrientos, Oscar Parra, Claudio Zaror, and Jorge Rojas Hernández. “The University of Concepción and Its Contribution to the Development of the Biobío Region and the Country”. Revista NUPEM 12, no. 27 (December 15, 2020): 180–199. Accessed October 12, 2026. https://periodicos-hml.unespar.edu.br/nupem/article/view/5627.