1. Let’s put kids first, finally: Getting class size right;Achilles,1999
2. Why should reduced class size lead to increased student achievement?;Anderson,2000
3. Class size in primary schools: Perceptions of head teachers, chairs of governors, teachers and parents;Bennett;British Educational Research Journal,1996
4. The behavioral effects of variations in class size: the case of math teachers;Betts;Educational Evaluation and Policy Analysis,1999
5. What research says about small classes and their effects;Biddle,2002