2Rvitch, D.(1995), National Standards in American Education: A Citizen's Guide. Washington, DC: Brooking Institute, p.37.
3Robert J. Marzano and John S. Kendall(1997), The Fall and Rise of Standards-Based. Education. A national Association of Slate Boards Education Issues in Brief, p.7.
4Robert J. Marzano (1998), Models of Standards Implementation: Implications for the Classroom. Midcontinent Regional Educational Laboratory, p.2.