Cover. HNUE Journal of Science: Journal of Natural Sciences, [S. l.], v. 71, n. 2, p. 1, 2026. DOI: 10.18173/2354-1059.2026-%x. Disponível em: https://hnuejs.edu.vn/ns/article/view/1743. Acesso em: 31 jul. 2026.