TY - JOUR AU - mehrdad, hossein AU - beiranvand, pari TI - Study of the Relationship Between Thinking Style and Change Acceptance Among the Principals at Boys' Middle Schools in Khorram Abad, Iran In The School 1389-90 year JO - Journal of Development & Evolution Mnagement VL - 4 IS - 8 SP - 23 EP - 33 PY - 2012 DO - ER -