فهرس المقالات Interval-valued fuzzy sets (IVFSs) حرية الوصول المقاله صفحة الملخص نص كامل 1 - An Assessment Method for Project Cash Flow under Interval-Valued Fuzzy Environment Vahid Mohagheghi SEYED meysam mousavi Behnam Vahdani 10.22094/joie.2017.278