Stephen Covey Quotes about Responsibility
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Stephen R. Covey (2004). “The 7 Habits of Highly Effective People: Powerful Lessons in Personal Change”, p.71, Simon and Schuster
Stephen R. Covey (2008). “The 7 Habits of Highly Effective People Personal Workbook”, p.87, Simon and Schuster
Stephen R. Covey (2016). “The 7 Habits of Highly Effective People: Powerful Lessons in Personal Change”, p.26, Mango Media Inc.