Richard Koch

80/20-individet

2006

Hvordan velge vinneraksjer

2010

Simplify

2018

The 80/20 Principle

2017

The 80/20 Manager

2015

80/20 prinsippet

1998

The 80/20 Principle: The Secret to Success by Achieving More with Less

1999

Living the 80/20 Way

2014

Vocational Training in Germany

1994

Simplify How the Best Businesses in the World Succeed

2016

The financial times guide to strategy

2006

The 80/20 Principle Achieve More with Less

2022

The 80/20 Principle and 92 Other Powerful Laws of Nature

2014

80/20-regeln Hemligheten med att uppnå mer med mindre

2015