M. Bahgat and F. M. Awan and H. A. Hanafy and O. N. Alzeghaibi, Synthesis of Hard Magnetic Material from Secondary Resources. journal = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology. August 2014, vol. 93(9). 936 - 941 [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/9999265.