共 29 条
[21]
KELLEY AC, 1968, C NEW DEVELOPMENTS T
[22]
Popham J. W., 1969, J EDUC MEAS, V6, P1
[23]
RATH GJ, 1959, AUTOMATIC TEACHING S
[24]
Rice J. M., 1893, PUBLIC SCH SYSTEM US
[25]
SILBERMAN HG, 1968, DESIGN OBJECTIVES IN
[26]
SPONBERG RA, 1968, INSTRUCTOR, V77, P101
[27]
SUPPES P, 1966, INFORMATION
[28]
WHIPPLE GM, 1925, NATIONAL SOC STUDY 2
[29]
WILHELMS FT, 1962, NATIONAL SOC STUDY 1