S MCCALLUM; S VIVIERS. Private sector impact investment in water purification infrastructure in South Africa: a qualitative analysis of opportunities and barriers. Water SA, [S. l.], v. 46, n. 1 January, 2020. DOI: 10.17159/wsa/2020.v46.i1.7880. Disponível em: https://watersa.net/article/view/7880. Acesso em: 22 dec. 2024.