WASET
    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.