E_Journal National

1. Perpustakaan Nasional Republik Indonesia https://oer.perpusnas.go.id/handle/123456789/116

2. LIPI https://jurnalbaca.pdii.lipi.go.id/baca

3. Portal Garuda https://garuda.kemdikbud.go.id/

4. Google Scholar https://scholar.google.com/

5. DOAJ https://doaj.org/

6. CiteSeer X https://citeseerx.ist.psu.edu/

7. JSTOR https://www.jstor.org/