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EBSCOhost Academic Search Complete
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EBSCOhost OmniFile Full Text Select
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EBSCOhost STM Source
(Available from 2000/01/01 until 2020/06/30.)
ProQuest Biological Science Database
(Available from 1997/04/01 volume: 25 issue: 2.)
ProQuest Political Science Database
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ProQuest SciTech Premium Collection
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