826
«2008 Annual Report,» Berkshire Hathaway Inc., .
827
Satya Nadella, interview with Rebecca Jarvis, «What Time Does This Tech Titan Wake Up in the Morning?» ABC News, February 4, 2015, .
828
Jackie Wattles, «Goldman Sachs Bans Interns from Staying Overnight at the Office,» CNN Money, June 17, 2015, .
829
Jena McGregor, «The Average Worker Loses 11 Days of Productivity Each Year Due to Insomnia, and Companies Are Taking Notice,» The Washington Post, July 30, 2015, http://www.washingtonpost.com.
