Karl Brunnhölzl, Groundless Paths
Karl Brunnhölzl, Gone Beyond 1
Karl Brunnhölzl, Gone Beyond 2
Arvind Sharma, Advaita Vedanta
Müller, The Upanishads 1 + 2
Swami Nikhilananda, The Manduky Upanishad
The Agamasutra of Gaudapa
Mandukykarika
Shankara, Vivekachudamani
Cole, Asparsa-Yoga
Nisargadatta, I am That
Namkhai Norbu, The Supreme Source
Swami Brahmananda, Supreme Knowledge
Dowman, Natural Perfection
Van Schaik, Approaching the Great Perfection
David Loy, Nonduality
