edited by Peter J. Burke
Stanford University Press, 2006
Buku Teks
Ouspensky, P.D.
Hodder and Stoughton, 1957
Buku Teks
Viren Swami
BPS Blackwell, 2011
Buku Teks
Volkan, Vamik, author
Pitchstone, 2004
Buku Teks
edited by Anna De Fina, Deborah Schiffrin, Michael Bamberg
Cambridge University Press, 2006
Buku Teks