Spatio-Temporal Characterization and Acoustic Mapping of Ambient Noise Levels at Ogbonnaya Onu Polytechnic, Aba, Nigeria: A Multi-Source Compliance Analysis. Applied Science, Computing, and Energy, [S. l.], v. 4, n. 5, p. 764–780, 2026. Disponível em: https://cemrj.com/index.php/volumes/article/view/247. Acesso em: 8 aug. 2026.