Piezon, Sherry L, and William D Ferree. “Perceptions of Social Loafing in Online Learning Groups: A Study of Public University and U.S. Naval War College Students”. The International Review of Research in Open and Distributed Learning 9, no. 2 (June 30, 2008). Accessed April 24, 2024. https://www.irrodl.org/index.php/irrodl/article/view/484.