The main sources are given below-
1# Materia medica pura, Part I-VI, (1811-1821).
2# Organon of Medicine, 1st to 6th edition (1828-1830)
3# Chronic disease, their nature and Homoeopathic treatment, Part I to Part IV,(1828-1830).
Lesser writings of Hahnemann::
1# Essay on a new principle for Ascertaining the curative powers of drugs, and some Examinations of the previous principles.
2# On the value of speculative systems of Medicine, especially in connection with the various system of practice (1808).
3# On the preparation and Dispensing of Medicines of Homoeopathic physicians (1820).
These are the basis of all subsequent actions given by his followers.