Aleister Crowley - Pocket Guide to Thelema
Aleister Crowley - The Equinox Vol III No IX The Holy Books Of Thelema
Aleister Crowley - Brief Introduction To The Religion Of Thelema
Charles Francis Horne - The Sacred Books and Early Literature of the East vol X
Shirley Blackwell Lawrence - The Secret Science of Numerology The Hidden Meaning of Numbers and Letters
Aleister Crowley - Liber 013 vel Graduum Montis Abiegni