Chu, Annie, Jenny Cui, and Ivo D. Dinov. “SOCR Analyses: Implementation and Demonstration of a New Graphical Statistics Educational Toolkit”. Journal of Statistical Software 30, no. 3 (April 28, 2009): 1–19. Accessed April 26, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v030i03.