| Tel. (North America) |
1-647-678-3118 1-416-706-9245 |
| Fax (North America) | 1-905-883-8728 |
| Mobile (if calling from outside Vietnam) | 011 84 90 251 5911 |
| Mobile (if calling within Vietnam) | 090 251 5911 |
| info@vnata.org |
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