1. Tumors of the head and neck—clinical and pathological considerations;Batsakis,1974
2. Synopsis of oral pathology;Bhaskar,1965
3. Leukoplakia of the intra-oral cavity;MacComb;Postgrad Med,1960
4. Intra-oral cavity;MacComb,1967
5. Leukoplakia oris;Hobaek;Acta Odontol Scand,1946