Miller, V. A., Reynolds, W. W., Ittenbach, R. F., Luce, M. F., Beauchamp, T. L., & Nelson, R. M. (2009). Challenges in Measuring a New Construct: Perception of Voluntariness for Research and Treatment Decision Making.

Miller, Victoria A., William W. Reynolds, Richard F. Ittenbach, Mary Frances Luce, Tom L. Beauchamp, και Robert M. Nelson. Challenges in Measuring a New Construct: Perception of Voluntariness for Research and Treatment Decision Making. 2009.

Miller, Victoria A., et al. Challenges in Measuring a New Construct: Perception of Voluntariness for Research and Treatment Decision Making. 2009.