Wilcox, Diana Donohue. “Watzlawick, Paul, Weakland, John H., and Fisch, Richard. (1974). <i>hange: Principles of Problem Formation and Problem Resolution< I>”. Canadian Journal of Counselling and Psychotherapy, vol. 13, no. 2, Mar. 2012, https://jhistsex.org/index.php/rcc/article/view/60245.