1. Application and Selection of Control Valves:B.G. Liptak, A. Balint:Book-Process Control and optimization Vol II (B.G.Liptak).
2. Cavitation in Control Valves: Samson AG: Technical information.
3. Control Valve Characteristics: www.maintenanceresources.com/referencelibrary: Cashco Catalog.
4. Control Valve hand Book:Emerson Process Management:4th Edition (Fisher).
5. Control Valve Selection and Sizing :K.L.M Technology Group:Engineering Design Guidelines.