فهرست مقالات intervening variables دسترسی آزاد مقاله صفحه چکیده متن کامل 1 - Presenting an interactive marketing model based on causal, contextual and intervening variables in the steel industry Hossein Vahidi Iry Sofla Mahmoud Ahmadi Sharif Mohammad Nasrolahnia peyman Ghafari Ashtiani