ISBN 81-7017-398-1.. Chari, S. M. Srinivasa (1997). Philosophy and Theistic Mysticism of the Āl̲vārs. Motilal Banarsidass Publishers. ISBN 9788120813427.
Aranyaka, with Sayana Bhashya . Anandashram, Pune 1926. B.D. Dhawan. Mysticism and Symbolism in Aitareya and Taittiriya Aranyakas, South Asia Books (1989)
complete website regarding Ghaus ul Azam and Gilani Syeds. Articles on mysticism of Ibn Arabi from Ibn Arabi Society Website dedicated to Shaikh Muhyi'din
Rao Alterno, Letizia (17 July 2006). "Raja Rao: An Indian writer using mysticism to explore the spiritual unity of east and west". London: The Guardian