Martin Kaufman, Homeopathy in America, the Rise and Fall of a Medical Heresy, Baltimore, Johns Hopkins University Press, 1972, p. 24, ISBN0-8018-1238-0, OCLC264319.
Richard Haehl, Samuel Hahnemann His Life and Work, vol. 2, London, Homoeopathic Publishing, 1922, p. 11, OCLC14558215.
Larnaudie Roger, La Vita Interiore di Samuel Hahnemann. Fondatore dell'Omeopatia, Padova, 2007, pag.18, ISBN978-88-86893-77-0, OCLC67493911.