Nikopoulou Μ., Tsitskaris Γ., Doganis Γ., & Kioumourtzoglou Ε. (2006). Development of a Student Behavior Rating Scale According to Hellisons’ Model. Inquiries in Physical Education and Sport, 4(1), 19–28. Retrieved from https://journals.lib.uth.gr/index.php/inquiries/article/view/1114