Brown, Katie E., and Aimy S.L. Steele. “Racial Discipline Disproportionality in Montessori and Traditional Public Schools: A Comparative Study Using the Relative Rate Index”. Journal of Montessori Research 1, no. 1 (November 14, 2015): 14–27. Accessed January 18, 2022. https://journals.ku.edu/jmr/article/view/4941.