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 Efficiency of Sudanese Banks: A Stochastic Frontier Approach (1996-2004).
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ISSN 1858-6023. متوفر في: &lt;<a href="http://37.60.236.48/index.php/gjess/article/view/243" target="_new">http://37.60.236.48/index.php/gjess/article/view/243</a>&gt;. تأريخ الوصول: 29 july 2026.