Hernández-Serrano, Olga, José P. Espada, and Alejandro Guillén-Riquelme. “Relationship of the Prosocial Behaviour, the Problem-Solving Skills and the Use of Drugs Amongst Adolescents.”. Anales de Psicología / Annals of Psychology 32, no. 2 (April 3, 2016): 609-616. Accessed September 23, 2019. https://revistas.um.es/analesps/article/view/analesps.32.2.204941.