Phan, L. T., E. T. Rivera, M. A. Volker, and M. T. Garrett. “Measuring Group Dynamics: An Exploratory Trial”. Canadian Journal of Counselling and Psychotherapy, vol. 38, no. 4, Feb. 2007, https://dev.journalhosting.ucalgary.ca/index.php/rcc/article/view/58742.