KEVIN XU, YI SUN, and BHARAT BHARGAVA. “An Introduction to the Enterprise-Participant (EP) Data Model”. International Journal of Next-Generation Computing 5, no. 3 (November 1, 2014): 304–317. Accessed December 21, 2024. http://ijngc.perpetualinnovation.net/index.php/ijngc/article/view/74.