List of Articles هزینه- سود Open Access Article Abstract Page Full-Text 1 - Assessment of environmental and social-economic impacts for sand mines by using cost-benefit analysis – case study Mohammad Hasan Shokri Ehsan Mosavi Open Access Article Abstract Page Full-Text 2 - Cost–benefit analysis of databases in Mohaghegh Ardabili University in 2009 Aliakbar Poorahmad Hadi Sharif Moghaddam Effat Bonyadi Open Access Article Abstract Page Full-Text 3 - Cost-Benefit Survey of Conservation and Preservation Methods of Resources in Libraries of Tehran Governmental Universities Effat Karimi mazrae Shahi Abass Gilvari