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Korea Communications Commission. (December 31, 2019). Time users aged between 20 and 29 years spend daily on their smartphone in South Korea in 2019 [Graph]. In Statista. Retrieved April 20, 2021, from https://www.statista.com/statistics/990087/south-korea-smartphone-time-twenties/
Korea Communications Commission. "Time users aged between 20 and 29 years spend daily on their smartphone in South Korea in 2019." Chart. December 31, 2019. Statista. Accessed April 20, 2021. https://www.statista.com/statistics/990087/south-korea-smartphone-time-twenties/
Korea Communications Commission. (2019). Time users aged between 20 and 29 years spend daily on their smartphone in South Korea in 2019. Statista. Statista Inc.. Accessed: April 20, 2021. https://www.statista.com/statistics/990087/south-korea-smartphone-time-twenties/
Korea Communications Commission. "Time Users Aged between 20 and 29 Years Spend Daily on Their Smartphone in South Korea in 2019." Statista, Statista Inc., 31 Dec 2019, https://www.statista.com/statistics/990087/south-korea-smartphone-time-twenties/
Korea Communications Commission, Time users aged between 20 and 29 years spend daily on their smartphone in South Korea in 2019 Statista, https://www.statista.com/statistics/990087/south-korea-smartphone-time-twenties/ (last visited April 20, 2021)
