ALISAH, Mohamad Izudin, et al. “Acoustic Attenuation Performance Analysis and Optimisation of Expansion Chamber Coupled Micro-Perforated Cylindrical Panel Using Response Surface Method”. Archives of Acoustics, vol. 46, no. 3, Aug. 2021, pp. 507–517, https://doi.org/10.24425/aoa.2021.138143.