George, M., Siraqyan, X., Morales, R., Barra De La, F., Rodríguez, J., López, C. and Toledo, V. 1994. Adaptation and validation of two screening instruments of mental health of first grade schoolchildren of Santiago. Revista de Psicología. 5, (Jan. 1994), Pág, 17–26. DOI:https://doi.org/10.5354/0719-0581.1994.18486.