共 9 条
[2]
CHILDRENS UNDERSTANDING OF NUMBER AND RELATED CONCEPTS
[J].
CANADIAN JOURNAL OF PSYCHOLOGY,
1960, 14 (03)
:191-205
[4]
ESTES B W, 1956, J Genet Psychol, V88, P219
[6]
Long L, 1941, PEDAGOG SEMIN J GEN, V59, P377
[7]
MUSSEN PH, HANDBOOK RESEARCH ED, P359
[8]
PIAGET J, 1960, SCI AMER, V189, P74
[9]
WOHLWILL J F, 1960, J Genet Psychol, V97, P345