Assessment of Noise Pollution Levels in Onitsha Metropolis: A Case Study of Major Districts. INTERNATIONAL JOURNAL OF INDUSTRIAL AND PRODUCTION ENGINEERING, [S. l.], v. 3, n. 2, p. 1–13, 2025. Disponível em: https://journals.unizik.edu.ng/ijipe/article/view/5572. Acesso em: 17 may. 2025.