제목: Exploring Adolescent Happiness: Commitment, Purpose, and Fulfillment저자: Zipora MagenSAGE Publications, Inc; 1 edition (June 30, 1998) https://www.amazon.com/Exploring-Adolescent-Happiness-Commitment-Fulfillment/dp/0761907319/ref=sr_1_fkmr0_1?s=books&ie=UTF8&qid=1535267683&sr=1-1-fkmr0&keywords=modem+exploring+adolescent+happiness
제목: Well-Being: Foundations of Hedonic Psychology저자: Daniel Kahneman, Edward Diener, Norbert Schwarz Russell Sage Foundation (February 13, 2003) https://www.amazon.com/Well-Being-Foundations-Psychology-Daniel-Kahneman/dp/0871544237/ref=sr_1_1?s=books&ie=UTF8&qid=1535265641&sr=1-1&keywords=well-being%3A+the+foundations+of+hedonic+psychology
제목: small changes, big results krieger저자: Ellie Krieger, Kelly James-Enger출판사: Clarkson PotterFirst Edition edition (February 22, 2005) https://www.amazon.com/Small-Changes-Big-Results-12-Week/dp/1400051029/ref=sr_1_2?s=books&ie=UTF8&qid=1535254705&sr=1-2&keywords=small+changes%2C+big+results+krieger