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平台:
EBSCOhost Academic Search Complete
(Available from 1996/01/01 until 2018/01/31.)
EBSCOhost Business Source Complete
(Available from 1996/01/01 until 2018/01/31.)
EBSCOhost OmniFile Full Text Select
(Available from 1996/01/01 until 2018/01/31.)
ProQuest Agricultural & Environmental Science Database
(Available from 2001/03/01 volume: 68 issue: 2 until 2018/01/31 volume: 85 issue: 1.)
ProQuest SciTech Premium Collection
(Available from 2001/03/01 volume: 68 issue: 2 until 2018/01/31 volume: 85 issue: 1.)