Microsoft Releases Voice Assistant Usage Report, Finds Apple Siri And Google Assistant Tied at 36%, and 41% of Respondents Have Privacy Concerns - Voicebot.ai
Interviewing Siri, Cortana, Google, Alexa | What do they think about their competitors? - YouTube
Annual test results between Siri, Google Assistant and Alexa - iPhone Islam
Market power of Siri, Alexa, Google a concern, EU regulators say | Global Business Review Magazine