Cottrell IW, Kang KS and Kovacs P (1980) Handbook of Water-Soluble Gums and Resins, McGraw-Hill Book Company, Chaper 24, New York
Frangou SA, Morris ER, Rees DA, Richardson RK, Ross-Murphy SB (1982) Molecular origin of xanthan solution rheology: effects of urea on chain conformation and interactions. J Polym Sci: Polymer Lett Ed 20: 531-538
Glicksman M (1982) Food Hydrocolloids III, p 197, CRC Press, Inc., Boca Raton, Florida