George Stalk

도서
Hardball Hardball
Hardball
2004년
Five Future Strategies You Need Right Now Five Future Strategies You Need Right Now
Five Future Strategies You Need Right Now
2008년

오디오북
Hardball : Are You Playing to Play or Playing to Win? Hardball : Are You Playing to Play or Playing to Win?
Hardball : Are You Playing to Play or Playing to Win?
2025년