Ibrahim, A. S. B. (2010). Knowledge Acquisition Using Rough Sets.
Lua i Stíl Chicago (17ú heag.)Ibrahim, Ahmed Sobhi Bakri. Knowledge Acquisition Using Rough Sets. 2010.
Lua MLA (9ú heag.)Ibrahim, Ahmed Sobhi Bakri. Knowledge Acquisition Using Rough Sets. 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.