Perla, Rocco J., and James M. Carifio. “Theory Creation, Modification, and Testing: An Information Processing Model and Theory of the Anticipated and Unanticipated Consequences of Research and Development”. Journal of MultiDisciplinary Evaluation 7, no. 16 (July 25, 2011): 84–110. Accessed August 19, 2022. https://journals.sfu.ca/jmde/index.php/jmde_1/article/view/320.