Hamed, A.T. and Mohammed, D.N. 2021. Testing the Efficiency of the Ira qi Stock exchange: An Applied Study for a Sample of Companies in the Industrial Sector. Tikrit Journal of Administrative and Economic Sciences. 17, 56, 2 (Dec. 2021), 128–146. DOI:https://doi.org/10.25130/tjaes.17.56.2.7.