REFERENCES
- Bies , D. A. and Hansen: , C. H. 2003 . Engineering Noise Control: Theory and Practice , 3rd ed. , 532 – 533 . London : Spon Press .
- Lord , H. W. , Gatley , W S. and Evensen: , H. A. 1987 . Noise Control for Engineers , 315 – 316 . Malabar, Fla. : Robert Krieger Publishing Company .
- Schlichting , H. and Gersten: , K. 2003 . Boundary Layer Theory , 8th revised edition , 671 – 672 . Berlin : Springer .
- Sheen , S. and Hsiao: , Y. 2007 . On using multiple-jet nozzles to suppress industrial jet noise . J. Occup. Environ. Hyg. , 4 : 669 – 677 .
- Lawton , B. W. 2001 . Damage to Human Hearing by Airborne Sound of Very High Frequency or Ultrasonic Frequency , Sudbury, Suffolk, U.K. : Health and Safety Executive .
- International Organization for Standardization (ISO): . 1993 . Acoustics: Attenuation of Sound during Propagation Outdoors. Part 1: Calculation of the Absorption of Sound by the Atmosphere (ISO 9613/1:1993) , [Standard] Geneva : ISO .
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