Borges, C. D., C. P. Bastos, and C. T. Vendruscolo. “Evaluation of Physical and Chemical Characteristics of Xanthan Gums”. Semina: Ciências Exatas E Tecnológicas, vol. 28, no. 2, Dec. 2007, pp. 107-14, doi:10.5433/1679-0375.2007v28n2p107.