Asencio García , I.A., Chipana Chipana, H., Alvarez Porroa , C.D.P. and Lapoint Montes , V.A. 2021. Oral Language and Precalculus in 5-year-old children from Cercado de Lima. Revista Iberoamericana de educación. (Dec. 2021). DOI:https://doi.org/10.31876/ie.vi.84.