1. Directory of Open Access Journals

2. SINTA (Science and Technology Index) (S3)

3. Index Copernicus

4. GARUDA: Garba Rujukan Digital

5. Google Scholar

6. Crossref

7. BASE

8. Neliti

9. DRJI

10. COSMOS IMPACT FACTOR

11. ResearchBib

12. WorldCat

13. LIPI