Reference

1. https://docplayer.info/30260791-Teknik-untuk-perencanaan-permodelan-proses-process-modeling-permodelan-data-data-modeling-permodelan-object-object-modeling-permodelan.html
2. http://eprints.binadarma.ac.id/684/1/ANALISIS%20PERANC.%20SISTEM%20INFORM%20materi%209.pdf
3. https://mti.binus.ac.id/2017/10/11/business-process-management-dan-modelling-untuk-service-oriented-architecture-soa-2/
4. https://tallyfy.com/business-process-modeling-techniques/
5. http://iopscience.iop.org/article/10.1088/1757-899X/128/1/012010/pdf