1. ASTM Designation: E90-61T. Tentative recommended practice for laboratory measurement of airborne sound transmission loss of building floors and walls. This has been supplanted by a more recent edition (see reference [7]).
2. American standard acoustical terminology,1960
3. ASTM E90-55. Recommended practice for laboratory measurement of airborne sound transmission loss of building floors and walls. See the revision of the transmission loss standard immediately preceding reference [1].
4. Acoustics;Beranek,1954
5. Diffusion of the decaying sound field;Balachandran;Acustica,1967