فهرس المقالات مدل رگرسیون خطی چندمتغیره حرية الوصول المقاله صفحة الملخص نص كامل 1 - Relationship between Physico-Chemical Soil Properties and Drying of Coniferous Trees in the South of Tehran and Alborz by Multiple Linear Regression Models Afsoon Ahmadipour Ali Mohammadi Torkashvand Abbas Ahmadi Raheleh Ebrahimi