found: Work cat.: Greenberg, C. What happy working mothers know : how new findings in positive psychology can lead to a healthy and happy work/life balance, c2009.
found: MayoClinic.com. Work-life balance: ways to restore harmony and reduce stress, May 31, 2008.
found: Wikipedia, Dec. 16, 2009(Work-life balance is having enough time for work and enough to have a life, thus the work life balance; the expression was first used in the late 1970s to describe the balance between an individual's work and personal life; in the United States, this phrase was first used in 1986; related but broader terms include "lifestyle balance" and "life balance")
