1. Institute of Chemistry Vietnam Academy of Science and Technology 18 Hoang Quoc Viet street Nghia Do ward Cau Giay district, Hanoi city Vietnam
2. Graduate University of Science and Technology 18 Hoang Quoc Viet street, Nghia Do ward Cau Giay district, Hanoi city Vietnam
3. Phenikaa University Nguyen Van Trac street, Yen Nghia ward Ha Dong district, Hanoi city Vietnam