ISSN 0439-755X
CN 11-1911/B
A STUDY ON THE DEVELOPMENT OF 8-15-YR OLDS'CONCEPT OF INTERSECTION SET AND THEIR ABILITY IN RESOLVING INTERSECTION PROBLEM——STUDIES ON THE DEVELOPMENT OF CHILDREN'S COGNITIVE STRUCTURE(Ⅰ)
Liu Fan (Institute of Psychology,Academia Sinica) Zhao Shu-wen (Beijing Normal College)
Acta Psychologica Sinica . 1983, (02): 30 -35 .