Tibet, pre-Buddhist Tibetan culture, Zhang Zhung civilization
The Light of Kailash : A History of Zhang Zhung and Tibet is a three-volume series by the late Chogyal Namkhai Norbu, former professor of Tibetan and Mongolian Language and Literature at the University of Naples L'Orientale. Born in Derge, Tibet, he spent much of his career researching the origins of pre-Buddhist Tibetan culture, finding sources in an ancient civilization, Zhang Zhung1, and an indigenous ritual tradition, Bon2.
"Chogyal Namkhai Norbu. The Light of Kailash, A History of Zhang Zhung and Tibet,"
Comparative Civilizations Review: Vol. 83
, Article 23.
Available at: https://scholarsarchive.byu.edu/ccr/vol83/iss83/23