فهرس المقالات Ahmad Jafarnejad Chaghoushi المقاله 1 - Designing a smart contract process model based on blockchain technology Using Meta-Synthesis Research Method 20.1001.1.25887327.2021.5.2.3.4 Amin Pouya Ahmad Jafarnejad Chaghoushi Sajad Shokohyar Mehdi Karimizand Signal Processing and Renewable Energy , العدد 2 , السنة 5 , بهار 2021