Elwin, Verrier (1955). The Religion of an Indian Tribe. Bombay: Oxford University Press.
McDougal, Charles (1963). The Social Structure of the Hill Juang. Ann Arbor: University Microfilms.
Orans, Martin (1965). The Santal: A Tribe in Search of a Great Tradition. Detroit: Wayne State University Press.
Yamada, Ryuji (1970). Cultural Formation of the Mundas. Tokyo: Tokai University Press.