List of Articles تابع تولید لئونتیف Open Access Article Abstract Page Full-Text 1 - Estimation of Water Demand Function in Rice Production in Gorgan County: Application of the Seemingly Unrelated Regression (SUR) Method Soraia Ansari ali keramatzadeh Azam Rezaee Khalil Ghorbani 10.30495/jae.2022.23722.2114