Martínez-Zocón, R. N. ., and J. T. Esquivel-Grados. “Quaternary Ideograms As a Didactic Technique to Form Mathematical Conceptual Relationships in University Students”. HUMAN REVIEW. International Humanities Review / Revista Internacional De Humanidades, vol. 21, no. 2, Aug. 2023, pp. 451-64, doi:10.37467/revhuman.v21.5081.