Pham, Thi Thu Ha
Dien, Nguyen Dac
Vu, Xuan Hoa http://orcid.org/0000-0002-0192-9474
Tran, Thu Trang
Ca, Nguyen Xuan
Van Truong, Nguyen
Tan, Pham Minh
Van, H. T.
Van Do, Phan
Funding for this research was provided by:
Bộ Giáo dục và Ðào tạo
Article History
Received: 28 December 2019
Accepted: 27 May 2020
First Online: 5 June 2020
Conflict of interest
: The authors declare that they have no conflict of interest.