BLAUER, Stephen O livro dos sucos. 3 ed. Rio de Janeiro: Record, 1997. p.108-111
SEIBOLD, R.L. (Ed.) Cereal grass: what´s in it for you! The importance of wheat
grass, barley grass and other vegetables in the human diet. Lawrence (Kansas): Wilderness
Community Education Fundation, 1990.
REYNOLDS, J.E.F. (Ed.) Martindale: the extra pharmacopoeia. 29th ed.
London: Pharmaceutical Press, 1989. p.858