Wartan, Hasmeek, and هاسمیک. “Use of Graphs in the Statistical Modeling Process”. Journal of Education and Science (JES) 27, no. 1 (March 1, 2014): 142–157. Accessed August 4, 2025. https://rjps.uomosul.edu.iq/index.php/edusj/article/view/17287.