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平台:
EBSCOhost Academic Search Complete
(Available from 1996/12/01 until 2004/12/31.)
EBSCOhost Business Source Complete
(Available from 1996/12/01 until 2004/12/31.)
EBSCOhost Professional Development Collection
(Available from 1996/12/01 until 2004/12/31.)
ProQuest Agricultural & Environmental Science Database
(Available from 1992/01/01 volume: 5 issue: 1 until 2004/07/31 volume: 16 issue: 2.)
ProQuest SciTech Premium Collection
(Available from 1992/01/01 volume: 5 issue: 1 until 2004/07/31 volume: 16 issue: 2.)