Slezák, Peter, Pavol Bokes, Pavol Námer, and Iveta Waczulíková. “Microsoft Excel Add-in for the Statistical Analysis of Contingency Tables”. International Journal for Innovation Education and Research 2, no. 5 (May 1, 2014): 90–100. Accessed February 6, 2025. https://scholarsjournal.net/index.php/ijier/article/view/188.