فهرس المقالات Forward selection Approach حرية الوصول المقاله صفحة الملخص نص كامل 1 - Comparative Approach to the Backward Elimination and for-ward Selection Methods in Modeling the Systematic Risk Based on the ARFIMA-FIGARCH Model Nemat Rastgoo Hossein Panahian 10.22034/amfa.2017.536263