Covey, S. R. (1997). The seven habits of highly effective people (tujuh kebiasaan manusia yang sangat efektif). Bina Rupa Aksara.
Chicago Style (17th ed.) CitationCovey, Stephen R. The Seven Habits of Highly Effective People (tujuh Kebiasaan Manusia Yang Sangat Efektif). Bina Rupa Aksara, 1997.
MLA (8th ed.) CitationCovey, Stephen R. The Seven Habits of Highly Effective People (tujuh Kebiasaan Manusia Yang Sangat Efektif). Bina Rupa Aksara, 1997.
Warning: These citations may not always be 100% accurate.