1. Dockrat, I. S. (1968): quoted by Pindborget al.
2. Hammer, J. E.; Looney, P. P.; Chused, T. N. and Bethesda, M. (1974) Submucous fibrosis,Oral Surgery, Oral Medicine, Oral Pathology,37: 412.
3. Joshi, S. G. (1953): Submucous fibrosis of the palate & pillars,Indian Journal of Otolaryngology,4: 1.
4. Mehta, F.S.; Pindborg, J.J. and Hammer J. E. (1971): Oral cancer and precancerous conditions in India. Ejner Munksgards Forlogy, Copenhagen.
5. Mukherjee, A L. and Biswas, S. K. (1972): Oral Submucous fibrosis, A search for an aetiology.Indian Journal of Otolaryngology,24: 11.