EQUIPMENT GRAFTING IN TELECOMMUNICATION INDUSTRY(CASE STUDY NIGERIA PSTN). Nigerian Journal of Technology, [S. l.], v. 29, n. 1, p. 34–44, 2009. DOI: 10.4314/njt.291.139. Disponível em: https://mail.nijotech.com/index.php/nijotech/article/view/139. Acesso em: 19 apr. 2026.