Kareem, Urdak Ibrahim, and Fadhaa Mezher Hashim. “Comparison of Some Methods for Estimating Mixture of Linear Regression Models With Application”. Journal of Economics and Administrative Sciences 27, no. 129 (September 30, 2021): 171–184. Accessed March 31, 2025. https://jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/2183.