Report copyright - jS^^ITf^gKe^ Jf^gB ig49# 2000 39-48^ITf^gKe^ Jf^gB ig49# 2000 39-48 Kffl*^- -Oiflfific - ®*mB (2000^ 9 E30Hf:S) Reduction of Class Size in Primary and Junior High Schools in Postwar
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