Khalwatīyah (Topical Term)

Work cat.: 95-107188: Clayer, N. Mystiques, état et société, 1994 (Halvetis, Halvetiyye)

Encyc. Islam, 2nd. ed.: Art. Khalwatiyya (Khalwatiyya, Halvetiyye)

Trimingham. The Sufi orders in Islam, 1971: pp. 74-78 (Khalwatiyya)

Concise encyc. Islam, 1991: Art. (Khalwatiyyah)