د. عثمان نصر, عنايات على الخضر and د. الطيب السماني (2018) “Use Google MAPS Techniques to Restriction Real Estate Taxable Properties”, White Nile Journal for Studies and Research, (12), pp. 60–74. Available at: https://journals.wnu.edu.sd/index.php/wnjsr/article/view/167 (Accessed: 13 June 2026).