Root, D. H., Fabbricatore, A. T., Barker, D. J., Ma, S., Pawlak, A. P., & West, M. O. (2009). Evidence for Habitual and Goal-Directed Behavior Following Devaluation of Cocaine: A Multifaceted Interpretation of Relapse. Public Library of Science.

Root, David H., Anthony T. Fabbricatore, David J. Barker, Sisi Ma, Anthony P. Pawlak, و Mark O. West. Evidence for Habitual and Goal-Directed Behavior Following Devaluation of Cocaine: A Multifaceted Interpretation of Relapse. Public Library of Science, 2009.

Root, David H., et al. Evidence for Habitual and Goal-Directed Behavior Following Devaluation of Cocaine: A Multifaceted Interpretation of Relapse. Public Library of Science, 2009.