8Ennis,Robert H.,1962,A concept of critical learning.Harvard Educational Review 32(1),81-111.
9Ennis,Robert H.,1993,Critical Thinking Assessment,Theory into Practice 32(3),179 86.
10McBride,R.E.,Xiang P.,and Wittenburg D.,2002,Dispositions toward critical thinking:The Preserves Teacher's Perspective,Teachers and Teaching:Theory and Practice 8,29-40.