WOŹNIAK, Jacek. “Some Factors Hindering Acceptance of Three Gamification Solutions in Motivation Systems, in Small and Medium Enterprises”. Management Dynamics in the Knowledge Economy 5, no. 4 (December 28, 2017): 663–680. Accessed April 21, 2025. https://www.managementdynamics.ro/index.php/journal/article/view/219.