TY - JOUR AU - Abbasian, hossein AU - Mohebi, majid AU - Mirzapour, solmaz TI - The Study of the Role of School Solidarity as the Prior of Collective Efficacy of Teachers JO - Journal of New Approaches in Educational Administration VL - 7 IS - 27 SP - 45 EP - 60 PY - 2016 DO - ER -