“Digital Protection System of the Engine-Generator Based Microcontroller AT89C51”. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ) 24, no. 1 (October 25, 2021): 38–48. Accessed July 21, 2026. https://jrucs.iq/index.php/JAUCS/article/view/463.