Google Scholar
Bibliographic Database
Website: https://scholar.google.com

Scilit
Scientific Literature
Website: https://www.scilit.net

Elsevier SSRN
Abstracting & Indexing Database
Website: https://www.ssrn.com/index.cfm/en

Academia.edu
Article Repository Site
Website: https://www.academia.edu

EuroPub
Directory of Academic and Scientific Journals
Website: https://europub.co.uk

Crossref
DOI Foundation
Website: https://www.crossref.org

IJIFACTOR
Multidisciplinary Searchable Journal Database
Website: https://ijifactor.com

CiteFactor
Directory Indexing
Website: https://www.citefactor.org

Research Gate
Commercial Research Network
Website: https://www.researchgate.net

ROAD
Open Access Directory
Website: https://road.issn.org

Google LLC
Online Search Engine
Website: https://www.google.com

Advanced Sciences Index
Journal Indexing and Abstracting Service
Website: https://journal-index.org

CiteSeerX
Scientific Digital Library
Website: https://citeseerx.ist.psu.edu/index

WorldCat
Global Library Catalog
Website: https://www.worldcat.org

Directory of Res. J. Indexing
Indexing Database
Website: http://olddrji.lbp.world

Publons
Peer Review System
Website: https://publons.com

ResearchBib
Open Access Indexing Database
Website: https://www.researchbib.com

Issuu, Inc.
Electronic Publication
Website: https://issuu.com

Slide Share
Professional Document Hosting
Website: https://www.slideshare.net