Saya mau tau Lihat pula dari Lima Buddha Kebijaksanaan

Bogle, George; Markham, Clements Robert; and Manning, Thomas (1999) Narratives of the Mission of George Bogle to Tibet and of the Journey of Thomas Manning to Lhasa ISBN 81-206-1366-X

Bucknell, Roderick & Stuart-Fox, Martin (1986). The Twilight Language: Explorations in Buddhist Meditation and Symbolism. Curzon Press: London. ISBN 0-312-82540-4