EMMANUEL, F. D.; EDAN, J. D.; PETER, E. U.; ISHOLA, O. G. Visibility Analysis for Surveillance Purposes in Modibbo Adama University, Yola, Adamawa State, Nigeria. Journal of Spatial Information Sciences, Awka, Nigeria, v. 2, n. 2, p. 228–239, 2025. DOI: 10.5281/zenodo.15726866. Disponível em: https://journals.unizik.edu.ng/jsis/article/view/6332. Acesso em: 28 jun. 2025.