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The effects of ability grouping on student math achievement and resource allocation in secondary schools
Betts, Julian R., (1998)
On the allocation of resources for secondary schools
Haelermans, Carla, (2012)
Wanna get away? : RD identification away from the cutoff
Angrist, Joshua D., (2012)
Railway Transportation : a history of its economics and its relation to the state ...
Raper, Charles Lee, (1912)
Railway transportation : a history of its economics and of its relation to the state