Weishaar, Phillip M., Wendy W. Fuchs, and Llena R. Williams. 2012. “An Initial Investigation of Preservice Teachers in the United States and Possible Applications to Ukraine: Perceived Knowledge of Response to Intervention”. Social Welfare: Interdisciplinary Approach 2 (2): 10-22. https://doi.org/10.15388/SW.2012.28209.