Roberto PorroJorge VelaVladimir NunezMiguel VasquezClemente SalazarPatricia SeijasJefferson CardenasAbel MezaIone VieiraNoemi S. Miyasaka Porro2026-03-222026-03-22201210.7910/dvn/qt5cjf/ahhbzahttps://doi.org/10.7910/dvn/qt5cjf/ahhbzahttps://andeanlibrary.org/handle/123456789/85021William Cavendish Research Note for PENenMathematics educationdataset