Nathaniel Altman, Healing springs: the ultimate guide to taking the waters : from hidden springs to the world's greatest spas. Inner Traditions / Bear & Company, 2000. ISBN0-89281-836-0
Dian Dincin Buchman, The complete book of water healing. 2nd ed., McGraw-Hill Professional, 2001. ISBN0-658-01378-5
Esti Dvorjetski, Leisure, pleasure, and healing: spa culture and medicine in ancient eastern Mediterranean., E. J. Brill, 2007 (illustrated). ISBN90-04-15681-X