Subhash & Cudney, 2018
|
Spain, US, Germany, United Kingdom; |
Ortiz et al., 2016
|
Europe, America, Asia , Africa and not specified |
Ortiz-Rojas et al., 2017
|
Europe:12, America: 5; Asia: 4, not specified: 2 |
Bai et al., 2019
|
Asia, Europe: 4, America:3 Countries: Spain, Hong Kong and Turkey |
Bai et al., 2020
|
East Asia:15, Western Asia: 5; Northern America: 2, South America: 2; Southern Europe: 2 |
Ekici, 2021
|
Spain, Great Britain, Taiwan, Indonesia, Hong Kong, Turkey and Cyprus, Singapore, Mexico, Germany |
Yıldırım & Şen, 2019
|
USA: 9, Turkey: 9, Spain: 4, England: 3; Taiwan: 3, Hong Kong: 2 |
Osatuyi et al., 2018
|
USA 53, Germany 44, Australia 22, Switzerland 12 Hong Kong 8, UK 8, Finland 7 |
van Gaalen et al., 2021
|
USA or Canada |
Malicki et al., 2020
|
United States (6), Canada (4), Australia (2), Finland (2), Norway, Portugal, Spain (2) |
Dos Santos et al., 2020
|
Spain |
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