Ahmed, Fulla Makee, and Eman Mohammed Abdullah. “Comparison Between Nelson-Olson Method and Two-Stage Limited Dependent Variables (2SLDV ) Method for the Estimation of a Simultaneous Equations System (Tobit Model)”. Journal of Economics and Administrative Sciences 27, no. 130 (December 1, 2021): 210–226. Accessed December 25, 2024. https://jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/2212.