Bibliography
- Boyce, Mary (1979), Zoroastrians: Their Religious Beliefs and Practices, London: Routledge, ISBN 0-415-23903-6
- Boyce, Mary (1983), Āb-Zōhr, 1, Costa Mesa: Routledge & Kegan Paul, p. 48–49
- Kotwal, Firoze M.; Boyd, James W. (1991), The Yasna: A Zoroastrian High Liturgy, Leuven: Peeters
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