Wynn, C.T., Mosholder, R.S. and Larsen, C.A. 2016. Promoting Postformal Thinking In A U.S. History Survey Course: A Problem-Based Approach. Journal of College Teaching & Learning (TLC). 13, 1 (Jan. 2016), 1–20. DOI:https://doi.org/10.19030/tlc.v13i1.9567.