GONZALEZ TOVAR, Jose; GARZA SÁNCHEZ, Rosa Isabel; HERNÁNDEZ MONTAÑO, Alicia. Internal Structure of a Scale of Helplessness for young people in northern Mexico. Actualidades en Psicología, San José, Costa Rica, v. 33, n. 127, p. 81–95, 2019. DOI: 10.15517/ap.v33i127.33428. Disponível em: https://revistas.ucr.ac.cr/index.php/ap/article/view/2601. Acesso em: 30 nov. 2025.