Dilgeer, Dr Harjinder Singh (2008), Sikh Twareekh, publisher Sikh University Press & Singh Brothers Amritsar, 2008.Dilgeer, Dr Harjinder Singh (2012), Sikh History (in 10 volumes), publisher Sikh University Press & Singh Brothers Amritsar, 2010–12.Duggal, Kartar Singh (1988), «Philosophy and Faith of Sikhism», Himalayan Institute Press,Kaur, Surjit, Amongst the Sikhs: Reaching for the Stars, New Delhi, Roli Books, 2003ISBN 81-7436-267-3Khalsa, Guru Fatha Singh, Five Paragons of Peace: Magic and Magnificence in the Guru's Way, Toronto, Monkey Minds Press, 2010, ISBN 978968265819Khalsa, Shanti Kaur, The History of Sikh Dharma of the Western Hemisphere, Sikh Dharma, Espanola, NM, 1995ISBN 0-9639847-4-8Singh, Khushwant (2006), «The Illustrated History of the Sikhs», Oxford University Press, IndiaSingh, Patwant (1999), «The Sikhs», Random House, India,Takhar, Opinderjit Kaur, Sikh Identity: An Exploration of Groups Among Sikhs, Ashgate Publishing Company, Burlington, VT, 2005ISBN 0-7546-5202-5Teece, Geoff (2004), «Sikhism: Religion in focus», Black Rabbit Books,Dilgeer, Dr Harjinder Singh (1997), The Sikh Reference Book, publisher Sikh University Press & Singh Brothers Amritsar, 1997.Dilgeer, Dr Harjinder Singh (2005), Dictionary of Sikh Philosophy, publisher Sikh University Press & Singh Brothers Amritsar, 2005.Chopra, R. M. (2001), Glory of Sikhism, publisher Sanbun, New Delhi, ISBN 783473471195
