1. E.L. Du Brul, Il cranio, in: E.L. Du Brul, Anatomia orale di Sicher, Ed.Ermes, 1982, pp 59.
2. Variation in shape of the lingula in the adult human mandible;TULI;J Anat.,2000
3. Textbook of Anatomy;Hollinshead,1962
4. A Colour Atlas & Textbook of Oral Anatomy;Berkovitz,1978
5. D.H. Morgan, L.R. House, W.P. Hall, S.J. Vamvas, Diseases of the Temporomandibular Apparatus, 2nd ed., C. V. Mosby, St Louis, 1982, pp 19.