SILIVANH, S. Study Income of Tourism in Luangprabang Province. Souphanouvong University Journal Multidisciplinary Research and Development , [S. l.], v. 4, n. 1, p. 105–115, 2018. Disponível em: http://www.su-journal.com/index.php/su/article/view/52. Acesso em: 17 jan. 2026.