PHOMMATHAM, Syamphone; SYKHANTHONG, Sengsulixay; FONGSAMOUTH, Salongxay; INTHAPHANYA, Thanosinh. Study the willingness to pay of improving rubbish management in Pakxe city, Champasak Province. Champasack University Scientific Journal, [S. l.], v. 2, n. 2, p. 39–47, 2017. Disponível em: https://cu-journal.com/index.php/files/article/view/93. Acesso em: 24 jun. 2026.