Academic Resource Index

Directory of Open Access Scholarly Resources

Directory of Research Journals İndexing

Electronic Journals Library

WorldCat

EuroPub Database

Eurasian Scientific Journal Index

Bibliotheksservice-Zentrum Baden-Württemberg

Asos İndex

J-Gate Indexed

Universitatsbibliothek Leipzig

Wildauer Bücher+E-Medien Recherche-Tool

Bilgindex

WZB Berlin Social Science Center

Turkiye Turizm Dizini

Advanced Sciences Index

Beluga- Catalogue of Hamburg Libraries

CAB Abstract & CABI Full Text

Cosmos

Crossref

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