Tham khảo Nam_châm_vĩnh_cửu

  1. ^ Robert C. O'Handley (1999). Modern Magnetic Materials: Principles and Applications. Wiley-Interscience. ISBN-13 978-0471155669. 
  2. ^ K.H.J. Buschow (1998). Permanent-magnet Materials and Their applications. Trans Tech Publications. ISBN 0-8784978-796-X.