1. Review of magnetic methods for NDE;Jiles;NDT International,1988
2. Magnetic testing of iron;Saxby;Engineering,1868
3. Principles of Magnetic Particle Testing;Hoke,1967
4. Magnetic testing of iron and steel;deForest;Iron & Steel Eng,1932
5. Magnaflux inspection for cracks and seams;Doane;Iron Age,1933