Columbia subject headings:
Nursi, Said, 1873-1960.
Nursi, Said, 1873-1960. Risale-i nur.
Harvard subject headings:
Knowledge, Theory of (Islam)
Nurculuk.
Nursî, Said, 1873-1960. Risale-i nur.
Princeton subject headings:
Knowledge, Theory of (Islam)
Nursi, Said, 1873-1960--Views on knowledge.
Nursi, Said, 1873-1960. Risale-i nur.