Međedović, Janko. “Analysis of the Interaction of Predictors in the Linear Regression Models: An Example of Party Evaluation”. Primenjena psihologija 6, no. 3 (September 28, 2013): 267–286. Accessed August 8, 2022. https://primenjena.psihologija.ff.uns.ac.rs/index.php/pp/article/view/1086.