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World's largest collection of open access papers

A Quick Guide on Using the DOAJ Database

DOAJ is a community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals.

PDF Drive - Search and download PDF files for free.

PDF Drive is your search engine for PDF files. Please confirm the authenticity before quoting/citing.

JURN : search millions of free academic articles, chapters and theses

Jurn is a free online search tool for the finding and downloading of free full-text scholarly works.

SBIR on Twitter:

BA]SE is one of the world's most voluminous search engines especially for academic web resources. BASE provides more than 240 million documents from more than 8,000 content providers. You can access the full texts of about 60% of the indexed documents for free (Open Access). BASE is operated by Bielefeld University Library.