VOI. 57 (1) (2019), Contents. CONTENTS, Vol. 57 (1) (2019). <b>Vietnam Journal of Science and Technology</b>, Hanoi, VN, v. 57, n. 1, 2019. DOI: 10.15625/2525-2518/57/1/13621. Disponível em: https://vjs.ac.vn/jst/article/view/13621. Acesso em: 11 jan. 2026.