1. Ausmus, S. (2006). Using Computer Games and Other Media to Decrease Child Obesity. Agricultural Research. https://agresearchmag.ars.usda.gov/ar/archive/2006/mar/games0306.pdf
2. Cai, Y. Y. (2007). Research on Psychological Needs of Young Online Gamers. East China Normal University.
3. Cao, D. Z. (2007). The Interpretation of Social Role Theory on Teenagers’ Online Game Behavior. Xinxiang: Journal of Henan Normal University (Philosophy and Social Sciences Edition), No. 6, 207-209.