ISSN 0439-755X
CN 11-1911/B
THE DEVELOPMENT OF THE ABILITY TO COMPARE IN PRIMARY SCHOOL CHILDREN
WEI CH(?)NG, HWANG HSIO-YING, SUNG CHING-YAO, WANG CH'I-FEN
Acta Psychologica Sinica . 1964, (03): 74 -80 .