N. Medina-Altamirano, N. Enriquez-Gavilan, G. Tenorio-Molina, M. Quispe-Solano, W. Ticona-Larico, and C. López-Gómez, “The quality educational service and learning by competencies of the students of the Productive Technical Centers of the UGEL N. 01, district of Villa el Salvador, Lima, 2019”, Salud, Ciencia y Tecnología - Serie de Conferencias, vol. 1, p. 13, Sep. 2022, doi: 10.56294/sctconf202290.