References :
1. Bhalla, Sarup Das, Mahimd Prnkd`.h. Patiala, 1971
2. Knir Singh, Gurbilds Pdlshdhl 10. Paliala, 1968
3. Bhangu, Ratan Singh, Prnrli`in Panlh Prakash. Ainii Lsar, 1962
4. Macanliffe, Max Arthur, The Sikh Religion. Oxford, 1909
5. Ganda Singh, Life of Band a Singh ttahadur. Amritsar, 1935