Calmet’s The Phantom World.
Hugh Clifford’s In Court and Kampong.
Codrington’s Melanesians.
Conway’s Demonology and Folk-lore.
William Crooke’s Popular Religion and Folk-lore of Northern India.
Gabriele D’Annunzio’s The Triumph of Death.
De Schartz, Magia Postuma.
C. M. Doughty’s Arabia Deserta.
Eaves’ Modern Vampirism.
Encyclopædia Britannica.