García García, Andrés, álvaro Viúdez González, y Jaclyn Gayle Lefkowitz. 2014. «The Influence of the parents’ Educational Level and participants’ Age in the Derivation of Equivalence-Equivalence». Psicothema 26 (Número 3):314-20. https://reunido.uniovi.es/index.php/PST/article/view/10475.