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平台:
ProQuest Agricultural & Environmental Science Database
(Available from 2006/01/01 volume: 1 issue: 1 until 2009/12/31 volume: 4 issue: 4.)
ProQuest Earth, Atmospheric & Aquatic Science Database
(Available from 2006/01/01 volume: 1 issue: 1 until 2009/12/31 volume: 4 issue: 4.)
ProQuest SciTech Premium Collection
(Available from 2006/01/01 volume: 1 issue: 1 until 2009/12/31 volume: 4 issue: 4.)