List of Articles روش هکمن دو مرحله‌ای

• Open Access Article
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  1 - Estimating the Recreational Value and Determining Effective Parameters on Willingness to Pay of Saint Stephanus Church Visitors by applying Two Stages Heckman Approach
  Mohammad Khodaverdizadeh Babollah Hayati Hossein Raheli Mohammad Kavoosi Kalashami