1. Textbook of Oral Pathology;Shafer,1983
2. Mucosal melanomas of the head and neck;Snow;Otolaryngol Clin North Am,1986
3. Primary melanomas in unusual sites;Das;Surg Gynecol Obstet,1969
4. Tumours of the Head and Neck;Batsakis,1974
5. Malignant Melanoma of the Skin and Mucous Membrane;Milton,1977