1. Bellamy, L.J., “The Infrared Spectra of Complex Molecules” Chapman Hall, London (1975).
2. Bitchall, J. D., “The Preparation and Properties of Polycrystalline Aluminum Oxide Fibers”Trans. J. Br. Ceram. Soc,82, 143 (1983).
3. Dhingra, A. K., “Alumina Fibre FP”,Phil. Trans. R. Soc, A294, 411 (1980).
4. Gadsden, J. A., “Infrared Spectra of Minerals and Related Inorganic Compounds” Butterworths Readings, Mass. (1975).
5. Gimblett, F. G. R., “Inorganic Polymer Chemistry”, Butterworths Readings, London (1963).