Groff J L. 2000. Advanced nutrition and human metabolism.Belmont : Wadsworth. Stipanuk M H.2000. Biochemical and physiological aspects of human nutrition.Philadelphia : W S Saunders. Wardlaw G.1996. Perspectives in Nutrition[electronic resource.St.Louis : Times Mirror. Bender D A.2002.Introduction to nutrition and metabolism.Boca Raton : CRC Press. Insel P Turner R E. 2002. Nutrition. Massachusetts: Jones and Bartlett Publishers. Brown J E.2011.Nutrition Now.6th edition.Wadsworth.Canada Byrd Bredbenner C.2013.Wardlaw’s perspectives in nutrition.9th edition.McGraw Hill.NY.USA. Pinkaew S.2013.Extruded rice fortified with zinc, iron and vitamin A increase zinc status of Thai school childrenwhen incorporated into a school lunch program. Pinkaew S. 2012.Vitamin A stability in triple fortified extruded artificial rice grains containing iron zinc and vitamin A.