Novak, Colin, Helen Ule, and Robert Gaspar. “Comparittve Study of Noise and Vibration Measurements of Computer Cooling Fans”. Canadian Acoustics 34, no. 3 (September 1, 2006): 82–83. Accessed May 15, 2024. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1832.