Tesha, J.V. “Relationship Between Magnetic Ageing, Metallographic Evidence O of Ageing and Composition for Cold Rolled Si-Fe Electrical Sheets”. Tanzania Journal of Engineering and Technology 12, no. 2 (December 31, 1988): 41-63. Accessed November 23, 2024. https://tjet.udsm.ac.tz/index.php/tjet/article/view/87.