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Heo, Jongho, Juhwan Oh, S. V. Subramanian, Yoon Kim, και Ichiro Kawachi. Addictive Internet Use Among Korean Adolescents: A National Survey. Public Library of Science, 2014.

Heo, Jongho, et al. Addictive Internet Use Among Korean Adolescents: A National Survey. Public Library of Science, 2014.