Preston, Jack (2015). ‘Infographic: How stressed are UK employees?’ Virgin, April. [Online] Доступно на: .
112
Borg, James (2010). Mind power: Change Your Thinking, Change Your Life. Harlow: Pearson.
113
Джим Лоэр, Тони Шварц. М.: Манн, Иванов и Фербер, 2017.
114
Loehr, Jim, Schwartz, Tony (2003). The Power of Full Engagement: Managing Energy, Not Time, Is the Key to High Performance and Personal Renewal. New York: Simon & Schuster.