List of Articles Cooperative Style Open Access Article Abstract Page Full-Text 1 - Investigating the Relationship between Conflict Management Styles and the Staffs' Job Stress with the Aim of Applying the Appropriate Management Style in Future Ramezan Jahanian Azam Ishaghi Open Access Article Abstract Page Full-Text 2 - An investigation of the relationship between sources of control (internal and external ) and decision making styles (participatory, authoritative ) of school principals alireza moshtagh hoseinali bahramzadeh