The 80/20 Principle : Achieve More with Less: the essential guide to increasing productivity, effectiveness and results using the 8020 rule Koch, Richard 9781529370454 80/20 Heftet 20.01.2022 Engelsk I salg
Beyond the 80/20 Principle : The Science of Success from Game Theory to the Tipping Point Koch, Richard 9781529331448 80/20 Heftet 06.08.2020 Engelsk I salg