University of Tehran Iranian Economic Review 1026-6542 17 1 2013 01 01 Effects Of Risk Parameters (Credit, Operational, Liquidity And Market Risk) On Banking System Efficiency (Studying 15 Top Banks In Iran) 1 24 32743 10.22059/ier.2011.32743 EN Ebrahim Hosseininassab Kazem Yavari Nader Mehregan Reza Khoshsima Journal Article 2013 05 19 https://ier.ut.ac.ir/article_32743_7908fdeb815a9456c2613f3bc84de1e4.pdf