Bulla, A., J. Wertalik, and L. Yakabovits. “Comparing the Effectiveness of Restricted-Operant and Free-Operant Teaching Arrangements on Measures of Acquisition and Fluency Outcomes”. Single Case in the Social Sciences, vol. 1, no. 1, Oct. 2024, pp. 15-35, doi:10.15763/issn.1936-9298.2024.1.1.15-35.