Columbia subject headings:
Jihad.
Qaida (Organization)
ʻAbd al-Ḥakīm, ʻUmar.
Harvard subject headings:
Islam.
Jihad.
Qaida (Organization)
ʻAbd al-Ḥakīm, ʻUmar.
Princeton subject headings:
Jihad.
Qaida (Organization)
ʻAbd al-Ḥakīm, ʻUmar.