ABDELWAHAB, Manal Elzien; 						KHALIFA, Ahmed Hamza.
 Market Orientation in the Sudanese Manufacturing Firms (An Empirical Study).
<strong>Gezira Journal of Economic and Social Sciences</strong>, [S.l.], v. 1, n. 2, jan. 2010.
ISSN 1858-6023. متوفر في: &lt;<a href="http://37.60.236.48/index.php/gjess/article/view/208" target="_new">http://37.60.236.48/index.php/gjess/article/view/208</a>&gt;. تأريخ الوصول: 29 july 2026.