| Design, implementation, and evaluation of an approach for determining when programmers are having difficulty Recent countries visiting this post |  |
 | 9 | United States |
 | 2 | |
 | 1 | Italy |
| Design, implementation, and evaluation of an approach for determining when programmers are having difficulty Recent countries visiting this post | |
| 9 | United States |
| 2 | |
| 1 | Italy |