1. A summary of trends in American time allocation;Aguiar;Soc. Indicators Res.,2009
2. Working Less and Living Longer: Long Term Trends in Working Time and Time Budgets;Ausubel,1994
3. Habits of the Heart;Bellah,1985
4. The land of the long lost weekend: trends in free time among working age Australians, 1974–1992;Bittman;Society and Leisure,1998
5. Flow: The Psychology of Optimal Experience;Csikszentmihalyi,1991