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The experience of development
Kelley, Allen C.; Williamson, Jeffrey G.; Chenery, Hollis B. - In: The American economic review 63 (1973) 2, pp. 459-468
Persistent link: https://www.econbiz.de/10002230617
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An experiment with tips: A computer-aided instructional system for under-graduate education
Kelley, Allen C. - In: The American economic review 58 (1968) 2, pp. 446-457
Persistent link: https://www.econbiz.de/10003599678
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TIPS and technical change in classroom instruction
Kelley, Allen C. - In: The American economic review 62 (1972) 2, pp. 422-428
Persistent link: https://www.econbiz.de/10003599703