List of Articles مدیر آموزشی Open Access Article Abstract Page Full-Text 1 - Investigating the relationship between the self-esteem of educational principals and the tendency toward poisonous leadership ali mollahoseini esmaeel zalbeigi Open Access Article Abstract Page Full-Text 2 - Studying Characteristics of Successful Educational Principals: Towards Developing a Standard Scale for Research on Successful School Principalship KH. GH N. SH Y. صیادی