abu salih, m. h., & rajjal, y. (2007). Strategic planning of Sudan: The missing dimension. [s.n.].
Lua i Stíl Chicago (17ú heag.)abu salih, mohammed hussein, agus yasser rajjal. Strategic Planning of Sudan: The Missing Dimension. Khartoum: [s.n.], 2007.
Lua MLA (9ú heag.)abu salih, mohammed hussein, agus yasser rajjal. Strategic Planning of Sudan: The Missing Dimension. [s.n.], 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.