فهرس المقالات Back Propagation Artificial Neural Network حرية الوصول المقاله صفحة الملخص نص كامل 1 - Measurement of Bitcoin Daily and Monthly Price Prediction Error Using Grey Model, Back Propagation Artificial Neural Network and Integrated model of Grey Neural Network Mahdi Madanchi Zaj Mohammad Ebrahim Samavi Emad Koosha 10.22034/amfa.2020.1881110.1315