6Pisano,Robert Christopher.The Effectiveness Of An Intervention Study In Critical Thinking Skills Designed To Improve · Written Composition In Eleventh And Twelfth Graders[J].Dissertation Abstracts International,1980(1-A):192.
7Andrea Lewis,Kathryn Palmer.A Critical Thinking/Discipline Specific Model for Teaching Writing through Service Learning[EB/OL].http://wac.colostate.edu/llad/v5n2/lewis_palmer.