Gover B, Bradley J. Measurement of Speech Privacy of Closed Rooms Using ASTM E2638 and Setting Criteria in Terms of Speech Privacy Class. Canadian Acoustics [Internet]. 2010 Sep. 1 [cited 2024 Nov. 27];38(3):152-3. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2290