1. Mientrung Institute for Scientific Research
2. Vietnam Academy of Science and Technology
3. Hue 530000
4. Vietnam
5. University of Education
6. Hue University
7. The University of Danang −University of Science and Education
8. Faculty of Pharmacy
9. Hue University of Medicine and Pharmacy
10. Faculty of Chemical Technology-Environment
11. The University of Danang−University of Technology and Education
12. Danang 550000
13. Hoa Binh University
14. Hanoi 100000
15. The University of Danang −University of Science and Technology