ALTAMIRANO DELGADO, L. I.; RAMOS YAHUANA, K. DEL P.; ROJAS TORRES, C. B. Construction of written language in childhood and adulthood: a case study from psychogenetic theory and andragogy. Universidad Ciencia y TecnologĂ­a, v. 30, n. 132, p. 104-109, 19 Aug. 2026.