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平台:
DOAJ Directory of Open Access Journals
(Available from 1994.)
EBSCOhost Academic Search Complete
(Available from 1994.)
EBSCOhost Environment Complete
(Available from 1994/06/01.)
EBSCOhost OmniFile Full Text Select
(Available from 2002/01/01.)
EBSCOhost Professional Development Collection
(Available from 1994/06/01.)
EBSCOhost STM Source
(Available from 1994/06/01.)
ProQuest Agricultural & Environmental Science Database
(Available from 2000/01/01 issue: 12.)
ProQuest SciTech Premium Collection
(Available from 2000/01/01 issue: 12.)