1. Ordiyasa, W., Nugroho, L. E., Santosa, P.I., & Kumorotomo, W. (2016). Enhancing quality of service for eGovernment interoperability based on adaptive ontology. In International Conference on Science and Technology-Computer (ICST), pp. 102–107.
2. European Commission, COM/2015/0192 final Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions, A Digital Single Market Strategy for Europe.
http://eur-lex.europa.eu/legal-content/EN/TXT/?qid=1447773803386&uri=CELEX%3A52015DC0192
. Last accessed November 27, 2017.
3. European Commission, EU Internal market: From crisis to opportunity: putting citizens and companies on the path to prosperity EU publications, ISBN 978-92-79-42535-6,
https://publications.europa.eu/en/publication-detail/-/publication/f85c0e8f-4cdf-4859-be26-f9c17e7fbb6f
. Last accessed November 27, 2017.
4. European Commission, COM/2017/134 Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions, European Interoperability Framework—Implementation Strategy {SWD(2017) 112 final} {SWD(2017) 113 final}.
http://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:52017DC0134&from=EN
. Last accessed November 27, 2017.
5. European Commission, New European Interoperability Framework Promoting seamless services and data flows for European public administrations, EIF brochure, ISBN 978-92-79-63756-8.
https://ec.europa.eu/isa2/sites/isa/files/eif_brochure_final.pdf
. Last accessed November 27, 2017.