Musa، M. H. (2004). A Digital Negative Sequence Over Current Relaying Algorithm For Detection of Unsymmetrical Faults on 11 KV Line. مجلة الجامعي، ع7 ، 1 - 21. مسترجع من http://search.mandumah.com/Record/853763
Musa، Mahmud H. "A Digital Negative Sequence Over Current Relaying Algorithm For Detection of Unsymmetrical Faults On 11 KV Line." مجلة الجامعي ع7 (2004): 1 - 21. مسترجع من http://search.mandumah.com/Record/853763