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First Author:
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| Dung The Pham |
| Vietnam National University, Hanoi 144 Xuan Thuy, Cau Giay, Hanoi, Vietnam |
| dungpthe@gmail.com |
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Second Author:
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| Hoa Trong Hoang |
| Vietnam National University, Hanoi 144 Xuan Thuy, Cau Giay, Hanoi, Vietnam |
| hoangtronghoa1988@gmail.com |
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Third Author:
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| Duc Dinh Nguyen |
| Vietnam National University, Hanoi 144 Xuan Thuy, Cau Giay, Hanoi, Vietnam |
| ducnd@vnu.edu.vn |
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