4Allan Odden(1990) Class Size arid Student Achievement: Reseatch - based Policy Ahetnatives, Educational Evaluation and Policy Analysis, 12 (2) : 213-227,1990,
5Joan McRobbie ( ed. ) (1998), WestEd Class Size Reduction Updates(electronicpublications), December 1996through April--May 1998.
6Joan McRobbie ( ed. ) ( 1998 ), WestEd Class Size Reduction:Lessons from Experience(electronic publications), Policy Brief No. Twenty - Three, August 1998.
7L.V. Hedges, R. D. Laine,and R. Greenwald,(1994) Does Money Matter? A Metaanalysis of the Effects of Differenteal School Inputs on student Outcomes Educational Researcher,23 : 5--14.
8Robinson, G.E.(1990). Synrtesis of research on effects of class size. Educational Leadership, 47 ( 7 ), 80 -90.
