@book{ BB03219151, author = "Betts, Julian R. and Hill, Paul Thomas", title = "Taking measure of charter schools : better assessments, better policymaking, better schools", publisher = "Rowman & Littlefield Education", year = "2010", series = "New frontiers in education", number = "", URL = "https://ci.nii.ac.jp/ncid/BB03219151" }