District | Commune | Village | No. of surveyed households |
Thai Nguyen city | Tan Cuong | Hong Thai 1 | 30 |
Phuc Xuan | Trung Tam | 30 | |
Phuc Triu | Lai Thanh | 30 | |
Dai Tu district | La Bang | La Bang | 30 |
| Yen Lang | Đong Đinh | 30 |
Dong Hy district | Trai Cai | Trai Cai 1 | 30 |
| Van Han | Van Han 1 | 30 |
Total |
| 210 |