Harris, Randy Allen. “Designing Visual Language: Strategies for Professional Communicators by Kostelnick, Charles, and David D. Roberts”. Discourse and Writing/Rédactologie 15, no. 1 (April 1, 1999): 80–86. Accessed May 3, 2024. https://journals.sfu.ca/dwr/index.php/dwr/article/view/438.