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OATD
Search engine for open-access theses and dissertations.
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DOAJ
Directory of peer-reviewed open-access journals.
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DOAB
Directory of open-access academic books.
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Google Scholar
Search engine for scholarly articles, theses and books.
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ASJP
Algerian scientific journals platform.
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HAL
Multidisciplinary open archive of research documents.
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CORE
Large aggregator of open-access research papers.
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BASE
Academic search engine for open-access resources.