1. Ariel I.M., Treatment of Cancer and allied diseases. Edited by Pack G.T. and Arial I.M., Vol. 3. 169, 1959.
2. Boyce-Korkis, F., Recent advances in Otolaryngology, J & A, Churchill, London. p. 293, 1958.
3. Cawthorne, T. E., Discussion on the early diagnosis of Nasopharynged carcinoma. Pro. Roy, Sec. Med, 46, 819: 1953.
4. Clifford P, Oettgen, H.C. Beacher, J.L. Brown, F.P, Harries, J.R., Lawes, W. E.,—Nitrogen mustard therapy with aortic Occlusion in nasopharyngeal carcinoma. Brit. Med. J., I., 1256, 1963.
5. Dawes, J.D.K., Harkness, D.G.; Marshall H.F., Van Miet., Malignant diseases of Nasopharynx. J. Laryng. Vol. 83 211, 1969.