1. Korea Communications Commission: 2022 Broadcasting Market Competition Assessment Report, pp.4-236, Feb 2023.
2. Ministry of Science and ICT Notice: 2023 Number of paid broadcasting subscribers and market share in the second half of 2022, pp.1-12, May 2023.
3. Korea Communications Commission: 2022 Broadcast Media Use Behavior Survey, pp.4-498, June 2023.
4. A Study on the Impact of the App-Book Purchasing Behavior of Smart phone Users in Korea
5. Internet use and non-use: views of older users