Awliya, Nizam Ad-Din( 1992) Fawa’id al-Fu’ad [Morals for the Heart] Trans, Bruce B. Lawrence.New York: Paulist Press.
Digby, S. (1986) The Sufi Shaikh as a Sorce of Authority in MedievalIndia. Purusartha 9: 57-77.
Lawrence, B( 1978) Notes from a Distant Flute: The Extant Literature of pre-Mughal Indian Sufism.Tehran:TehranImperialacademyofPhilosophy.
Nizami, K.A. (1990)Hind: V – Islam. Encyclopedia of Islam. Volume IV: 428-38.
Saussure, Ferdinand de (1974) Course in General Linguistics.London:Fontana.
Schimmel, A. (1975) Mystical Dimensions of Islam.Chapel Hill,N.C.: TheUniversityofNorth CarolinaPress.