1. ACM Digital Library
2. EBSCOhost Business Source Complete
3. Emerald
4. IEEE/IET Electronic Library (IEL) via IEEE Xplore® Digital Library
5. Lexis Advance
6. IOPScience
7. Passport
8. ProQuest Central
9. ProQuest Ebook Central
10. PsycARTICLES
11. ScienceDirect Freedom Collection via ScienceDirect
12. Scopus
13. Springer Journal Collection via SpringerLink
14. Cengage Learning eTextbooks
15. Wiley eTextbooks
16. McGraw-Hill eTextbooks
17. JSTOR Mathematics & Statistics Collection
18. Statista