Larrison, Abigail L, Alan J Daly, and Carol VanVooren. “Twenty Years and Counting: A Look at Waldorf in the Public Sector Using Online Sources”. Current Issues in Education 15, no. 3 (October 5, 2012). Accessed June 4, 2020. https://cie.asu.edu/ojs/index.php/cieatasu/article/view/807.