References
1. Daljeet Singh, 1998, Essential of Sikhism, Singh Bros, Amritsar.
2. Kulwant Singh, 2002, Naam-Simran, in The Sikh Review, vol. 50, No. 10.
3. Sri Gurbux Singh, 1999, Naam-Simran and Bhakti in Sikhism.
4. Harkinat Singh, 2003, University of Guru Granth Sahib: A comparative...