Gonzalez Tovar, J., Garza Sánchez, R.I. and Hernández Montaño, A. 2019. Internal Structure of a Scale of Helplessness for young people in northern Mexico. Actualidades en Psicología. 33, 127 (Nov. 2019), 81–95. DOI:https://doi.org/10.15517/ap.v33i127.33428.