Database | Total Number of Papers | Number of Relevant Papers |
Google Scholar | 5140 | 11 |
ERIC | 95 | 6 |
SpringerLink | 511 | 1 |
Scopus | 3 | - |
IEEE Xplore | 139 | 2 |
Science Direct | 1037 | 6 |
ProQuest Dissertations & Theses | 1436 | - |
Total | 8361 | 26 |