共 6 条
- [1] CHILDRENS UNDERSTANDING OF NUMBER AND RELATED CONCEPTS [J]. CANADIAN JOURNAL OF PSYCHOLOGY, 1960, 14 (03): : 191 - 205
- [2] Edwards A.L., 1957, TECHNIQUES ATTITUDE
- [3] Guttman L., 1950, MEASUREMENT PREDICTI, P60
- [5] HARKER WH, 1960, THESIS QUEENS U KING
- [6] Piaget J., 1952, CHILDS CONCEPT NUMB