Columbia subject headings:
Abū al-ʻAlāʼ al-Maʻarrī, 973-1057--Correspondence.
Fatimites--Correspondence.
Muʼayyad fī al-Dīn Hibat Allāh ibn Mūsá, -1077 or 1078--Correspondence.
Harvard subject headings:
Abū al-ʻAlāʼ al-Maʻarrī, 973-1057--Correspondence.
Muʼayyad fī al-Dīn Hibat Allāh ibn Mūsá, -1077 or 1078--Correspondence.
Princeton subject headings:
Abū al-ʻAlāʾ al-Maʻarrī, 973-1057. Correspondence.
Muʼayyad fī al-Dīn Hibat Allāh ibn Mūsá, -1077 or 1078--Correspondence.