“Analysis of the Indicators of the Educational Process and Scientific LevelUsing the Analysis of Variance of Ordered Data in Repeated Measurements”. Journal of Economics and Administrative Sciences 17, no. 63 (September 1, 2011): 260. Accessed May 16, 2024. https://jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/965.