Franco- Borges, Graciete, Maria de Fátima Sousa Ramos, Maria de Luz Vale-Dias, y Piedade Vaz-Rebelo. 2019. «Pro-Social Behavior, Empathy, Interpersonal and Trust Beliefs on Peers During Adolescence: Study of Their Relationship With a Sample of 181 Portuguese Adolescents of the 3rd Cycle (7º, 8º and 9º Year of Schooling)». Revista INFAD De Psicología. International Journal of Developmental and Educational Psychology. 2 (1):129-32. https://doi.org/10.17060/ijodaep.2019.n1.v2.1415.