Achieving Integration of Nigerian Cadastral and Topographic Information Systems Based on the German AAA Model. Global Journal of Science Frontier Research, [S. l.], v. 16, n. I2, p. 13–21, 2016. Disponível em: https://www.journalofscience.org/index.php/GJSFR/article/view/1941. Acesso em: 14 aug. 2026.