Books

• Lessons in industrial automation by Tony R. Kuphaldt
• Process control by Bella G Liptak
• ISA handbook of control valves by James W. Hutchison
• Emerson control valve handbook

Useful Link

• http://www.wermac.org/valves/valves_general.html
• https://www.youtube.com/watch?v=KWN9vJq9Z1M