Dandekar,R.N.(1987),”Vedanta”,The Encyclopedia of Religion,Ed. By Mircea Eliade,Vol.15,New York.
Dharmdeon,N.S.(1999),A Study of Hinduism,New Delhi.
Dasgupta,S.(1997),A History of Indian Philosophy,Vol.1,Delhi.
Dasgupta,S.(2000),A History of Indian Philosophy,Vol.2, Delhi.
Garbe,R.(1987),”Vedanta”, The Encyclopedia of Religion, Ed. by Mircea Eliade,Vol.15,New York.
Ghate,V.S.(1920),”Sankaracharya”, The Encyclopedia of Religion and Ethics, Ed. By James Hastings,Vol.11,New York.
Grierson,G.A.(1915),”Madhvas”, The Encyclopedia of Religion and Ethics, Ed. By James Hastings,Vol.8,New York.
Keith,A.B.(1918),”Ramanuja”, The Encyclopedia of Religion and Ethics, Ed. By James Hastings,Vol.10,New York.
Lipner,J.(1999),Hindus,London and New York,Routledge.