M. . Pérez Eizaguirre, F. Salinas Ramos, and M. J. del . Olmo Barros, “Music-therapy in the classroom: research on its use in Educacion Secundaria Obligatoria (secondary education)”, Pulso, no. 38, pp. 107–128, Oct. 2015, doi: 10.58265/pulso.5075.