Journal of Telecommunications and Information Technology > 2020 > nr 4 > 88--97
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journal ISSN : | 1509-4553 |
journal e-ISSN : | 1899-8852 |
DOI | 10.26636/jtit.2020.142920 |
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Bibliography
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[2] D. Murphy, „2.4 bn smartphone users in 2017, says eMarketer", Mobile Marketing Magazine, 2017 [Online]. Available: https://mobilemarketingmagazine.com/24bn-smartphone-users-in-2017-says-emarketer(accessed on 2019-01-03)
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[3] „Number of smartphone users worldwide from 2014 to 2020 (In millions)", Statista [Online]. Available: https://www.statista.com/statistics/330695/number-of-smartphoneusers-worldwide/