References

1. C. E. Betz, "Principles of magnetic particle testing," Magnaflux Corp. (1997)
2. NDT Handbook, Vol. 6 "Magnetic particle testing," ASNT (1989)
3. Jack Blitz, "Electrical and magnetic methods of NDT," Adam Hilger (1991)
4. 이의종, "자분탐상시험", 골드 (1995)
5. 이용, 비파괴검사의 기초, 제2권 "자분탐상검사", 세진사 (1993)
6. M. N. O. Sadiku, "Elements of electromagnetics," Oxford university press (2001)