TIEU, H. T. M. Integrating Ecological Lifestyle Education into Teaching Citizen Education at Secondary School in Vietnam - A Content Perspective. Vietnam Journal of Education, [S. l.], v. 5, n. 1, p. 44–51, 2021. DOI: 10.52296/vje.2021.31. Disponível em: https://vje.vn/index.php/journal/article/view/31. Acesso em: 9 feb. 2023.