Tree worship

Cultus Arborum

A Descriptive Account of Phallic Tree Worship

Anonymous

The Popular Religion and Folk-Lore of Northern India, Vol. 2 (of 2)

William Crooke

The Sacred Tree; or, the tree in religion and myth

J. H. Mrs. Philpot

The Popular Religion and Folk-Lore of Northern India, Vol. 1 (of 2)

William Crooke