خلف كمال علوان, and عبد الحسين كاظم يحيى. “Analysis of Composite Variance of Experiments Carried Out According to Design Latin Box”. Journal of Economics and Administrative Sciences 18, no. 66 (June 1, 2012): 294. Accessed April 4, 2025. https://jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/1082.