1.
Heiberger R, Robbins N. Design of Diverging Stacked Bar Charts for Likert Scales and Other Applications. J. Stat. Soft. [Internet]. 2014 Apr. 7 [cited 2022 May 28];57(5):1-32. Available from: https://www.jstatsoft.org/index.php/jss/article/view/v057i05