فهرست مقالات Meta-Frontier دسترسی آزاد مقاله صفحه چکیده متن کامل 1 - Relationship between Meta-Technology Ratios and Varietal Differences in Date Production (Case Study of Sistan and Baluchestan, Iran) Shahram Saeedian Mahmoud Sabouhi Sabouni Javad Shahraki Ebrahim Moradi Mohammad Sepahi