共 5 条
[1]
GRATCH G, 1959, Child Dev, V30, P217, DOI 10.1111/j.1467-8624.1959.tb04929.x
[4]
REWARD AND NONREWARD IN THE DISCRIMINATION LEARNING OF IMBECILES
[J].
JOURNAL OF COMPARATIVE AND PHYSIOLOGICAL PSYCHOLOGY,
1958, 51 (05)
:614-618
[5]
STEVENSON HW, 1961, CHILD DEV, V32, P1