| Databases | Number of articles found in database |
| Business Source Complete | 159 |
| ERIC | 42 |
| Academic Search Complete | 38 |
| Psychology & Behavioral Sciences Collection | 21 |
| Google Scholar | 7 |
| Science direct | 7 |
| Directory of Open Access Journals | 5 |
| CINAHL Plus | 5 |
| Complementary Index | 3 |
| Hospitality & Tourism Complete | 3 |
| EBSCOhost | 2 |
| Social Sciences Citation Index | 2 |
| Supplemental Index | 1 |
| BioOne Complete | 1 |
| Arts & Humanities Citation Index | 1 |
| NARCIS | 1 |
| Springer | 1 |
| Science Citation Index | 1 |
| Missing values | 1 |