Covey, Stephen R

與成功有約 by: 顧淑馨; 柯維 ((Covey, Stephen R.)); Covey, Stephen R (Language materials, printed)

第8個習慣 : 從成功到卓越 by: Covey, Stephen R; 殷文; 柯維 ((Covey, Stephen R.)) (Language materials, printed)

全心以赴 by: 柯維 ((Covey, Stephen R.)); Covey, Stephen R; 徐炳勳 (Language materials, printed)

Principle-centered leadership by: Covey, Stephen R (Language materials, printed)