1 2 Stephen H. Phillips & other authors (2008), in Encyclopedia of Violence, Peace, & Conflict (Second Edition), ISBN 978-0123739858, Elsevier Science, Pages 1347–1356, 701-849, 1867
↑ John Arapura in K. R. Sundararajan and Bithika Mukerji Ed. (1997), Hindu spirituality: Postclassical and modern, ISBN 978-8120819375; see Chapter 20, pages 392-417
↑ Chapple, C. (1990). Nonviolence to animals, earth and self in Asian Traditions (see Chapter 1). State University of New York Press (1993)