Richard Koch

Libros
El principio 80/20 El principio 80/20
El principio 80/20
2015
The 80/20 Principle, Third Edition The 80/20 Principle, Third Edition
The 80/20 Principle, Third Edition
1998
80/20 Sales and Marketing 80/20 Sales and Marketing
80/20 Sales and Marketing
2013
Simplify Simplify
Simplify
2016
O Princípio 80/20 O Princípio 80/20
O Princípio 80/20
2026
80 : 20 na každý deň 80 : 20 na každý deň
80 : 20 na každý deň
2025