Flaviano Armando Zenteno Ruíz, Raúl MalpartidaLovatón, Sergio Michel Estrella Chaccha, Ernesto César HuaringaRevilla, Alipio Merlin Rojas Miranda, “GeoGebra Classic: Learning of Euclidean geometry in students with multiple subject teaching”, TURCOMAT, vol. 12, no. 14, pp. 3063–6070, Sep. 2021.