https://library.oapen.org/bitstream/id/c7b615eb-794a-46fa-b63d-63a9bae6b26e/9781951399030.pdf
https://www.capgemini.com/consulting/wp-content/uploads/sites/30/2017/11/2017-egovernment-benchmark-insight1.pdf
https://www.ftm.eu/articles/ftm-financial-report-2024
https://ecfsapi.fcc.gov/file/109303096909269/Sage%20&%20Carpenter,%202009.pdf