Universidad Tecnológica de El Salvador

Sean Covey

10 Book

The 7 Habits of Highly Effective People
30th Anniversary Edition
Stephen R. Covey et al.
Simon & Schuster, 2020
8 Book

The 4 Disciplines of Execution
Achieving Your Wildly Important Goals
Sean Covey et al.
Free Press, 2012
10 书籍

高效能人士的七个习惯
改变自己命运的法宝
Stephen R. Covey 等等
Simon & Schuster, 2004