Table 3.
Study design of the journal articles [24].
| Study design | Web of Science | Taiwan Periodical Literature | WANFANG DATA | SCOPUS | Number of articles |
|---|---|---|---|---|---|
| Experiment | 0 | 1 | 0 | 0 | 1 |
| Field experiment | 1 | 0 | 0 | 0 | 1 |
| Survey | 18 | 9 | 2 | 5 | 34 |
| Total | 19 | 10 | 2 | 5 | 36 |
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