共 17 条
[2]
Bayer E, 1929, Z PSYCHOL PHYSIOL SI, V112, P1
[4]
BRUCE RH, 1937, PSYCHOL BULL, V34, P738
[7]
Harlow HF, 1932, PEDAGOG SEMIN J GEN, V41, P211
[10]
Leeper R, 1935, PEDAGOG SEMIN J GEN, V46, P3