ALLEN Timothy F. Encyclopedia of Pure Materia Medica (Vol. 1-10)
BOERICKE William Pocket Manual of Homeopathic Materia Medica
CLARKE John H. Dictionary of Practical Materia Medica (Vol. 1-3)
FARRINGTON Ernest A. Clinical Materia Medica
FARRINGTON Ernest A. Comparisons in Materia Medica with Therapeutic Hints.
HAHNEMANN Samuel Materia medica pura
HAHNEMANN Samuel Chronic diseases
HAHNEMANN Samuel Organon of Medicine
HERING Constantine Guiding Symptoms of our Materia Medica (Vol. 1-10)
KENT James Tyler Kent Lectures on homeopathic philosophy
PHATAK S. R. Materia Medica of Homoeopathic medicines
VITHOULKAS George Talks on Classical Homoeopathy - The Esalen Conferences 1980 - Part 1
VITHOULKAS George Talks on Classical Homoeopathy - The Esalen Conferences 1980 - Part 2
VITHOULKAS George Talks on Classical Homoeopathy - The Esalen Conferences 1980 - Part 3
VITHOULKAS George Essences of Materia Medica
LIPPE Adolph von Keynotes and red line symptoms of the materia medica.

+ Vithoulkas Expert System