Angrist, Joshua D.; Dynarski, Susan M.; Kane, Thomas J.; Pathak, Parag A.; Walters, Christopher R. (1 February 2010). "Who Benefits from KIPP?". Working Paper Series. doi:10.3386/w15740 – via National Bureau of Economic Research. {{cite journal}}: Cite journal requires |journal= (help)
Angrist, Joshua D.; Dynarski, Susan M.; Kane, Thomas J.; Pathak, Parag A.; Walters, Christopher R. (1 February 2010). "Who Benefits from KIPP?". Working Paper Series. doi:10.3386/w15740 – via National Bureau of Economic Research. {{cite journal}}: Cite journal requires |journal= (help)