Martin Caraballo, Ana M., Concepción Paralera Morales, and José M. Ramírez Hurtado. 2021. “Study of the Undergraduated Student Satisfaction at Quantitative Content Subjects”. IJERI: International Journal of Educational Research and Innovation, no. 16 (December). Sevilla, España:162-82. https://doi.org/10.46661/ijeri.4542.