Derby, K. M., Wacker, D. P., Sasso, G., Steege, M., Northup, J., Cigrand, K., & Asmus, J. (1992). Brief functional assessment techniques to evaluate aberrant behavior in an outpatient setting: A summary of 79 cases.

Derby, K M., D P. Wacker, G. Sasso, M. Steege, J. Northup, K. Cigrand, i J. Asmus. Brief Functional Assessment Techniques to Evaluate Aberrant Behavior in an Outpatient Setting: A Summary of 79 Cases. 1992.

Derby, K M., et al. Brief Functional Assessment Techniques to Evaluate Aberrant Behavior in an Outpatient Setting: A Summary of 79 Cases. 1992.