8John R. Thomas. The Status of Intellectual Property Research in the United States, [ EB/OL] www. lip. or. jp/summary/pdf/thomas2. PDF, 2005 -07 - 12. 被引量:1
10R. Burke Johnson ,Anthony J. Onwuegbuzie. Mixed Methods Research: A Research Paradigm Whose Time Has Come [ J ].Educational Researcher,2004 ( 4 ) : 14 - 26. 被引量:1