. . . . . . . . . . "al-ʻAlāqāt al-siyāsīyah wa-al-ijtimāʻīyah bayna jumhūrīyat Tshād wa-jumhūrīyat al-Sūdān fī al-fatrah mā bayna 1960-1990" . . . "al-ʻAlāqāt al-siyāsīyah wa-al-ijtimāʻīyah bayna Jumhūrīyat Tshād wa-Jumhūrīyat al-Sūdān fī al-fatrah mā bayna 1960-1990" . . "On political and economic relations between Sudan and Chad." . "العلاقات السياسية والإجتماعية بين جمهورية تشاد وجمهورية السودان فب الفترة ما بين ٠٦٩١-٠٩٩١" . . "Egypt" . . "Sudan" . . "Sudan." . . . "Chad" . .