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Samuel Perkins Hayes
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Ten years of psychological research in schools for the blind
Samuel Perkins Hayes · Pennsylvania Institution for the Instruction of the Blind
16 sayfa · 1927
Blind / Education / Education and institutions / Mental tests / Psychological testing
Contributions to a psychology of blindness
Samuel Perkins Hayes · American foundation for the blind
296 sayfa · 1941
Blind / Psychological testing / Psychology / Psychological tests / Psychology and Psychiatry
Twenty years of research
Samuel Perkins Hayes · Yayınevi bilinmiyor
14 sayfa · 1936
Blind / Education and institutions / Mental tests