Stephen Covey - Wikipedia, the free encyclopedia

Stephen Covey - Wikipedia, the free encyclopedia

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日期:2024-11-09
Stephen Richards Covey (October 24, 1932 – July 16, 2012) was an American educator, author, businessman, and keynote speaker. His most popular book was The Seven Habits of Highly Effective People. His other books include First Things First, Principle-Cent...看更多