1. Wearables market to be worth$25 billion by 2019. http://www.ccsinsight.com/press/company-news/2332-wearables-market-to-be-worth-25-billion-by-2019-reveals-ccs-insight. Accessed: 2017-01.
2. Rapid Expansion Projected for Smart Home Devices, IHS Markit Says. http://news.ihsmarkit.com/press-release/technology/rapid-expansion-projected-smart-home-devices-ihs-markit-says. Accessed: 2017-01.
3. Intelligent Virtual Assistant Market Worth$3.07Bn By 2020. https://globenewswire.com/news-release/2015/12/17/796353/0/en/Intelligent-Virtual-Assistant-Market-Worth-3-07Bn-By-2020.html. Accessed: 2016-08.
4. Intelligent Virtual Assistant Market Analysis And Segment Forecasts 2015 To 2022. https://www.hexaresearch.com/research-report/intelligent-virtual-assistant-industry/. Accessed: 2016-08.
5. Growing Focus on Strengthening Customer Relations Spurs Adoption of Intelligent Virtual Assistant Technology. http://www.transparencymarketresearch.com/pressrelease/intelligent-virtual-assistant-industry.html/. Accessed: 2016-08.