Partington, J. W., Sundberg, M. L., Iwata, B. A., & Mountjoy, P. T. (1979). A task-analysis approach to time telling instruction for normal and educablly mentally impaired children. Education and Treatment of Children, 2, 17-29.
Mark L. Sundberg, Ph.D., BCBA-D
Licensed psychologist with over 40 years of experience