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2.Kemp, K., 2008. Encyclopedia Of Geographic Information Science. Los Angeles: Sage publications.

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3. Haklay, M., Antoniou, V., Basiouka S., Soden, R., Mooney, P. 2014, Crowdsourced Geographic Information Use in Government, World Bank, London. 

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4. Ramasubramanian, L., 2010, Geographic information science and public participation, Springer Science & Business Media

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6. Cristina Capineri, Muki Haklay, Haosheng Huang, Vyron Antoniou, Juhani Kettunen, Frank Ostermann, Ross Purves, 2016. European Handbook of Crowdsourced Geographic Information Ubiquity Press.

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7. Tom Koch, 2005. Cartographies of Disease: Maps, Mapping, and Medicine 1st Edition.

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8. Michael Leitner, Jamal Jokar Arsanjani, 2017. Citizen Empowered Mapping. Springer Cham