List of Articles پژوهشگاه صنعت نفت Open Access Article Abstract Page Full-Text 1 - ivvestigation of human resource productivity fot research center(case study:research institute of petrolume industry) rohollah ghabezi Open Access Article Abstract Page Full-Text 2 - Presenting a Model to Explain the Empowerment of Knowledge Capitals with Using Interpretative Structural Modeling Ebrahim Rajabpour