هادي صباح, الغرابي سليم, and محمد ايمان. “Model Estimated Building in Finite Population Sampling”. Journal of Economics and Administrative Sciences 22, no. 87 (February 1, 2016): 384. Accessed May 20, 2025. https://www.jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/722.