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Bibliography
1. Tolle, E. (1999). The Power of Now: A Guide to Spiritual Enlightenment. New World Library.
2. Jahanpour, N. (2021). The Road to Happiness: Simple Techniques to Live a Happy and Fulfilled Life. Independently published.
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3. Lama, D., & Abrams, D. (2016). The Book of Joy: Lasting Happiness in a Changing World. Avery.
4. Rob Walker. (2019). The Art of Noticing: 131 Ways to Spark Creativity, Find Inspiration, and Discover Joy in the Everyday. Vintage.
5. Positive Psychology Course at Harvard University. (Provider and year unknown).
6. World Health Organization. (n.d.). Depression. Retrieved from https:// www.who.int/news-room/fact-sheets/detail/depression
7. Desmet, P. M. A. (2012). Faces of Product Pleasure: 25 Positive Emotions in Human-Product Interactions. International Journal of Design, 6(2), 1-29.
