Zafiroudi Αγλαΐα, and Hatzigeorgiadis Αντώνης. 2013. “Environmental Responsibility in Secondary School Students: Development, Validation & Relationships Between Environmental Scales”. Inquiries in Physical Education and Sport 11 (3):22-35. https://doi.org/10.26253/heal.uth.ojs.ispe.2013.1406.