1. National Bureau of Statistics of China. http://www.stats.gov.cn/english/
2. Pine II, J.B., Gilmore, J.H.: The Experience Economy: Work is Theater and Every Business a Stage. Harvard Business School, Cambridge (1999)
3. Piaget, J.: The Psychology of the Child. Basic Books, New York (1972)
4. Bronfenbrenner, U.: The Ecology of Human Development. Harvard University Press, New York (1979)
5. Ager, M.: Meta-ethnography: synthesizing qualitative studies. J. Nerv. Ment. Dis. 178(7), 466–467 (1990)