Abbasi, Ahmad, et al. “Investigation of the Effect of Life Skills Training on Self-Esteem, Expression and Aggression in High School Students in Fereydan City”. Revista Publicando, vol. 5, no. 16 (1), July 2018, pp. 829-54, https://revistapublicando.org/revista/index.php/crv/article/view/1550.