1. Choking and supercavitating valves;Tullis;J. Hydraul. Div., ASCE,1971
2. Laboratory measurement of airborne sound limit generated by control valves;Instrument Society of America;ISA-RP59.1, Instrument Society of America,1973
3. Control valve noise;Instrument Society of America,1976
4. Occupational safety and health standards and interpretations, 1910.95 Occupational Noise Exposure, OSHA, pp. 151–152.
5. Cavitation in butterfly valves;Ball;J. Hydraul. Div., ASCE,1973