OF ORIKPETE; TG LETON; OLY MOMOH. Assessment of Helicopter Flyover Noise for Tonal Components. Global Journal of Medical Research, [S. l.], v. 20, n. F11, p. 31–59, 2020. Disponível em: https://medicalresearchjournal.org/index.php/GJMR/article/view/2280. Acesso em: 7 may. 2024.