^B Gupta (2012), An Introduction to Indian Philosophy: Perspectives on Reality, Knowledge and Freedom, Routledge, ISBN 978-0-415-80003-7, pages 171-189
^PT Raju (1985), Structural Depths of Indian Thought: Toward a Constructive Postmodern Ethics, State University of New York Press, ISBN 978-0-88706-139-4, page 223
^John A. Grimes, A Concise Dictionary of Indian Philosophy: Sanskrit Terms Defined in English, State University of New York Press, ISBN 978-0-7914-3067-5, page 238
^DPS Bhawuk (2011), Spirituality and Indian Psychology (Editor: Anthony Marsella), Springer, ISBN 978-1-4419-8109-7, page 172
^Gavin Flood, An Introduction to Hinduism, Cambridge University Press, ISBN 978-0-521-43878-0, page 225
