1. Aalst and van der, WMP. 1996. Three good reasons for using a Petri-net-based workflow management system. Proceedings of the International Working Conference on Information and Process Integration in Enterprises. 1996. pp.179–201.
2. Bider, I. 2005.Choosing approach to business process modelling—practical perspective, 34J. Concept. Mod. Publisher InConcept
3. Assisting novice analysts in developing quality conceptual models with UML