Aleister Crowley - The Sixth Chakra of the Human Body
Aleister Crowley - Control of The Astral Body
Frater Achad - The Anatomy Of The Body Of God
Eliphas Levi - The Conjuration Of The Four Elements
George Robert Stowe Mead - Echoes From The Gnosis Vol II The Hymns Of Hermes
Order of Nine Angles - Otonen (A Guide to the Stage of Initiate)