1. Faculty of Chemistry, University of Education, Hue University, Hue City, Vietnam
2. Faculty of Pharmacy, University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
3. Mien Trung Institute for Scientific Research, Vietnam National Museum of Nature, VAST, Hue City, Vietnam
4. Department of Science, Technology and International Relations, Hue University, Hue City, Vietnam