* Encyclopaedia Of Sikhism, Prof Harbans Singh vol 2 pp 416* The Sikh Ref Book-Dr Harjinder Singh Dilgeer p464 & p196.
* Encyclopaedia of Sikhism, Prof Harbans Singh vol 2 pp 416* The Sikh Ref Book-Dr Harjinder Singh Dilgeer p464 & p196.