Only Way to Win How Building Character Drives Higher Achievement and Greater Fulfilment in Business and Life Loehr Jim Heftet / 2012 / Engelsk
On Form Managing Energy, Not Time, is the Key to High Performance, Health and Happiness Loehr Jim Heftet / 2003 / Engelsk
Corporate Athlete How to Achieve Maximal Performance in Business and Life Groppel Jack L. Innbundet / 2000 / Engelsk