共 57 条
[31]
ENGEL CE, 1991, CHALLENGE PROBLEM BA, P00022
[32]
Flavell J. H., 1977, COGNITIVE DEV
[34]
GRABINGER RS, 1997, ASS LEARNING TECHNOL, V5, P5
[35]
GRAVE WS, 1996, INSTR SCI, V24, P321, DOI DOI 10.1007/BF00118111
[40]
Hodges HF, 1996, J NURS EDUC, V35, P137