Indexing
- Directory of Open Access Journals (DOAJ)
- Moraref
- Crossref
- Portal Garuda
- Mendeley
- Google Scholar
- Academia.edu
- Bielefeld Academic Search Engine (BASE)
- CORE
- Worldcat
- Hardvard Library
- Leiden University Libraries
- Gent Univesity Library
- Boston University Library
- University of Oxford
- The University of Sheffield
- The University of Manchester
- Bayerische Staats Bibliothek
- University of Saskatchewan Library
- Beardslee Library of Western Theological Seminary
- Columbia University Libraries