فهرس المقالات Hamed Modaghegh المقاله 1 - Active Steganalysis of Transform Domain Steganography Based on Sparse Component Analysis 10.7508/jist.2015.02.002 Hamed Modaghegh Seyed Alireza Seyedin Journal of Information Systems and Telecommunication (JIST) , العدد 2 , السنة 3 , بهار 2015