1. Brooks, B. D. (1983). [Untitled]. In S. S. Baughman & P. D. Clagett (Eds.), Video Games and Human Development: A Research Agenda for the’ 80’s. Papers and proceedings of the symposium held at the Harvard Graduate School of Education. Cambridge, MA: Gutman Library, Harvard Graduate School of Education.
2. Cattell, R. B. (1966). The scree test for the number of factors. Multivariate Behavioral Research, 1, 245–276.
3. Greenburg, J. (1981a, April). Games addicts play. Forbes, p. 102.
4. Greenburg, J. (1981b, April). Japanese invaders. Forbes, pp. 98, 102.
5. Mandel, H. (1983, February). Dr. Video: NCTV takes stand on video game violence. Video Games, pp. 97-98.