CHANSAVANG, V. Culvert outlet Problems, Access Road, Erosion – Protection, Oudomxay Province. Souphanouvong University Journal Multidisciplinary Research and Development , [S. l.], v. 3, n. 1, p. 255–264, 2017. Disponível em: http://www.su-journal.com/index.php/su/article/view/41. Acesso em: 17 jan. 2026.