9Helmut Heseker&Sigrid Beer.Ernahrungs - und Gesundheitserziehung in der Schule [R].Paderborn Germany,1999.1 - 5.
10U.S.A.Department of education office of educational research and improvement in national Center For Education Statistics- Statistical Analysis Report:nutrition education in public elementary school classrooms,K- 5 [R].Washington:2000.1 - 8.
