COMPARISON OF PERFORMANCE OF PUBLIC AND PRIVATE BOREHOLES. Nigerian Journal of Technology, [S. l.], v. 29, n. 3, p. 42–47, 2009. DOI: 10.4314/njt.293.89. Disponível em: https://www.nijotech.com/index.php/nijotech/article/view/89. Acesso em: 11 may. 2026.