C. Theobald, T. F. McLaughlin, K. P. Weber, K. M. Derby, and M. Christensen, “The Effectiveness of a Delayed Model-Lead-Test and a Break Card on the Rational Counting Ability for a Preschool Student with Developmental Delays”, IJEE, vol. 4, no. 1, pp. 553–576, Jan. 2015, Accessed: Aug. 25, 2026. [Online]. Available: https://ijee.org/ijee/article/view/930