• SCOPUS(Under Review)
• Clarivate Analytics-Publons
• ADVANCED SCIENCE INDEX
• Microsoft Academic
• SciLit
• Dimensions
• BASE
• ICI Journals Master List - Index Copernicus (Poland)
• SHERPA/RoMEO (Publisher copyright policies & self-archiving)
• ISI
• Directory of Open Access Scholarly Resources (ROAD)
• Eurasian Scientific Journal Index(ESJI)
• American Quality Centre for Journals
• Academic Resource Index 
• WorldCat
• DOI
• Crossref Member
• Directory of Research Journals Indexing
• International Institute of Organized Research
• Scientific Indexing Services
• J-Gate
• Slides Share
• Google Scholar
• CiteFactor
• LOCKSS
• CLOCKSS
• Academia.edu
• The Open Science Framework (OSF)
• OpenAIRE
• ZENODO
• PKP Open Archives Harvester

Other Libraries: