Gargurevich, R., C. Chaparro, and P. Luyten. “Adaptation and Psychometric Properties of Questionnaires: Social Support Transactions (SST) and Social Support Satisfaction (SSS)”. Revista De Psicología (Trujillo), vol. 9, Dec. 2007, pp. 92-103, http://revistas.ucv.edu.pe/index.php/revpsi/article/view/520.