Surat Shabd Yoga (English Wikipedia)

Jones, Constance A.; Ryan, James D. (2007). "Sant Mat movement". Encyclopedia of Hinduism. Encyclopedia of World Religions. J. Gordon Melton, Series Editor. New York: Facts On File. pp. 383–384. ISBN 978-0-8160-5458-9. Archived from the original on 2016-12-20.

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Jones, Constance A.; Ryan, James D. (2007). "Sant Mat movement". Encyclopedia of Hinduism. Encyclopedia of World Religions. J. Gordon Melton, Series Editor. New York: Facts On File. pp. 383–384. ISBN 978-0-8160-5458-9. Archived from the original on 2016-12-20.

"WebCite query result". www.webcitation.org. Archived from the original on 2009-10-22. Retrieved 2017-01-14. {{cite web}}: Cite uses generic title (help)

"Radhasoami Satsang: Soamiji Maharaj". radhasoamisatsang.org. Retrieved 2017-01-14.

Singh, Kirpal. Morning Talks, chapter 25, page 1, ("Righteousness - Detachment - Self-restraint.") ISBN 0-942735-16-1, Ruhani Satsang, (7th ed., 2003): "The whole thing depends upon your attention, or surat as it is called, which is the outward expression of your soul."
Singh, K., Naam or Word. Blaine, WA: Ruhani Satsang Books. ISBN 0-942735-94-3, 1999; BOOK TWO: SHABD, The Sound Principle.
Singh, K. (1999). Naam or Word. Blaine, WA: Ruhani Satsang Books. ISBN 0-942735-94-3
Sant Kirpal Singh - Ruhani Satsang USA (1975). "The Night is a Jungle p. 362-366" (PDF).

"WebCite query result". www.webcitation.org. Archived from the original on 2009-10-22. Retrieved 2017-01-14. {{cite web}}: Cite uses generic title (help)