Kolovelonis Α., Goudas Μ., Dimitriou Ε., and Hassandra Μ. “A Qualitative Evaluation of a Life Skill Training Program in Physical Education”. Inquiries in Physical Education and Sport, vol. 8, no. 2, Sept. 2010, pp. 107-18, https://journals.lib.uth.gr/index.php/inquiries/article/view/1348.