Adel, Z., and S. Rashed. “Using the Linear and Non-Linear Discriminant Function With Cluster Analysis to Study the Level of Education for the Completed Stages (governmental – Private) In Nineveh Governorate”. IRAQI JOURNAL OF STATISTICAL SCIENCES, vol. 18, no. 1, June 2021, pp. 88-98, doi:10.33899/iqjoss.2021.0168377.