Crucial Conversations: Tools for Talking When Stakes are High by Kerry Patterson, Joseph Grenny, Ron McMillian, and Al Switzler ©2012, McGraw-Hill.
Health Enhancement Research Organization (HERO) “White Paper on Presenteeism”
Daniel Pink’s TED talk on “Motivation”
"Self-Determination" Research by the University of Rochester team and Edward Deci and Richard Ryan: http://www.selfdeterminationtheory.org