Roldán Rosales, Óscar E., and A. R. Campana Concha. “Linguistic Attitudes of University Students towards Quechua and Spanish Languages”. Revista De Investigaciones De La Universidad Le Cordon Bleu, Vol. 8, no. 1, July 2021, pp. 66-72, doi:10.36955/RIULCB.2021v8n1.006.