【作者(必填)】[size=10.285714149475098px]Randy Nelsona[size=10.285714149475098px] & [size=10.285714149475098px]Kathleen T. Hevertb

【文题(必填)】Effect of class size on economies of scale and marginal costs in higher education

【年份(必填)】Volume 24, Issue 5, 1992

【全文链接或数据库名称(选填)】http://www.tandfonline.com/doi/abs/10.1080/00036849200000061
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谢谢~