Supplemental Material for Effect of Early Grade Retention on School Completion: A Prospective Study
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2018 ◽
Vol 110
(7)
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pp. 974-991
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2001 ◽
Vol 45
(1)
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pp. 1-7
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2001 ◽
Vol 35
(1)
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pp. 12-17
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1997 ◽
Vol 4
(2)
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pp. 86-89
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