1. IPI Portal Garuda

2. Directory of Open Acces Journal (DOAJ)

3. Universiteit Gent

4. PKP Index

5. Index Copernicus International

6. One Search by Perpusnas

7. OCLC WordCat

8. SINTA

9. University Library

10. MIAR (Information Matrix for the Analysis of Journal)

11. OpenAir

12. HINARI (Research for Health)

13. Libris

14. Dimensions

15. Scilit

16. Crossref

17. Google Scholar

18. Garuda - Garba Rujukan Digital