In the Mandaean diaspora, shgandas, or alternatively learned laymen called yalufa, often perform minor priestly roles due to shortages of tarmida and ganzibra priests abroad.[3]: 338
^Drower, E. S. 1960. The Secret Adam: A Study of Nasoraean Gnosis. Oxford: Clarendon Press.
^Buckley, Jorunn Jacobsen (2002). The Mandaeans: ancient texts and modern people. New York: Oxford University Press. ISBN0-19-515385-5. OCLC65198443.
^Buckley, Jorunn Jacobsen (2010). The great stem of souls: reconstructing Mandaean history. Piscataway, N.J: Gorgias Press. ISBN978-1-59333-621-9.