Libros como Nunca comas solo
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Never Eat Alone2005
Leading Without Authority2020
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Ai che lưng cho bạn2011- Competing in the New World of WorkCompeting in the New World of Work2022
The Power of the Platform2009
3 personas para cambiar tu vida2010- TeamshipTeamship2024
- Real InfluenceReal Influence2013
Geh nie alleine essen! TB2007