abu salih, m. h., & rajjal, y. (2007). Strategic planning of Sudan: The missing dimension. [s.n.].
Cita Chicago (17th ed.)abu salih, mohammed hussein, i yasser rajjal. Strategic Planning of Sudan: The Missing Dimension. Khartoum: [s.n.], 2007.
Cita MLA (9th ed.)abu salih, mohammed hussein, i yasser rajjal. Strategic Planning of Sudan: The Missing Dimension. [s.n.], 2007.
Atenció: Aquestes cites poden no estar 100% correctes.