فهرس المقالات ahmad sadeghi المقاله 1 - Modelling Crowdfunding Ensemble Learning Prediction 10.22034/amfa.2020.1905837.1467 Mehran Saeidi Aghdam Akbar Alam Tabriz Alireza Bahiraie Ahmad Sadeghi Advances in Mathematical Finance and Applications , العدد 4 , السنة 6 , تابستان 2021