د. عثمان نصر; عنايات على الخضر; د. الطيب السماني. Use Google MAPS Techniques to Restriction Real Estate Taxable Properties. White Nile Journal for Studies and Research, [S. l.], n. 12, p. 60–74, 2018. DOI: 10.67135/wnj.2018.1204. Disponível em: https://journals.wnu.edu.sd/index.php/wnjsr/article/view/167. Acesso em: 19 aug. 2026.