Morteza Pouraghdam, Rasoul, and Rama Bhat. “Spectrum Analysis and Directivity Pattern of a Transducer-Driven Conch Shell”. Canadian Acoustics 43, no. 3 (September 8, 2015). Accessed July 21, 2024. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2787.