Crowley (1973), էջ. pn|date=May 2024: "[I]n his Oedipus Ægypticus. It is this book (late 17th century) [that] contains the earliest known appearance of the version of the Tree of Life used by the [Golden Dawn] and Crowley, and in fact most modern Western occultists." Crowley, Aleister (1973). 777 and other Qabalistic writings of Aleister Crowley. York Beach, Maine: Samuel Weiser. ISBN0-87728-222-6.
Parpola (1993). Parpola, Simo (1993). «The Assyrian Tree of Life: Tracing the Origins of Jewish Monotheism and Greek Philosophy». Journal of Near Eastern Studies. 52 (3): 161–208. doi:10.1086/373622. JSTOR545436. S2CID162212276.
Parpola (1993). Parpola, Simo (1993). «The Assyrian Tree of Life: Tracing the Origins of Jewish Monotheism and Greek Philosophy». Journal of Near Eastern Studies. 52 (3): 161–208. doi:10.1086/373622. JSTOR545436. S2CID162212276.
Parpola (1993). Parpola, Simo (1993). «The Assyrian Tree of Life: Tracing the Origins of Jewish Monotheism and Greek Philosophy». Journal of Near Eastern Studies. 52 (3): 161–208. doi:10.1086/373622. JSTOR545436. S2CID162212276.