1. Bernus, P. 2008. International Handbook on Information Systems. Springer.
2. Creswell, J.W. 2013. Research Design: Qualitative Quantitative Approaches, and Mixed Method Approaches. SAGE Publications.
3. Dennis, A. et al. 2015. System Analysis & Design An Objected-Oriented Approach with UML. John Wiley & Sons, Inc.
4. Goretta, H. et al. 2018. Technology Criteria Analysis and E-Voting Adoption Factors in the 2019 Indonesian Presidential Election. International Conference on Advanced Computer Science and Information Systems (ICACSIS) (2018), 143--149.
5. Guntur, M. et al. 2018. Critical Success Factors for Information Systems Development: A Case Study in E-Government. International Conference on Business and Information Management (ICBIM) (2018), 29--33.