Covey, Sean.

7個習慣決定未來 = 柯維給年輕人的成長藍圖 / by: 汪芸; Covey, Sean.; 柯維 ((Covey, Sean)) (Language materials, printed)

與成功有約祕密版 = 高效能人士的七個習慣 / by: 柯維 ((Covey, Stephen R.).); 顧淑馨.; 柯維 ((Covey, Sean).); Covey, Sean.; Covey, Stephen R. (Language materials, printed)