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平台:
EBSCOhost Academic Search Complete
(Available from 1992/03/01 until 2003/12/31.)
EBSCOhost Business Source Complete
(Available from 1992/03/01 until 2003/12/31.)
ProQuest Agricultural & Environmental Science Database
(Available from 2003/11/02 until 2005/11/30.)
ProQuest Earth, Atmospheric & Aquatic Science Database
(Available from 2003/11/02 until 2005/11/30.)
ProQuest Political Science Database
(Available from 2003/11/02 until 2005/11/30.)
ProQuest SciTech Premium Collection
(Available from 2003/11/02 until 2005/11/30.)