共 9 条
[1]
Bleehen N M, 1970, J Laryngol Otol, V84, P689, DOI 10.1017/S0022215100072406
[4]
Hartley J., 1978, DESIGNING INSTRUCTIO
[5]
MACDONALDROSS M, 1975, PROGRAM LEARN EDUC T, V12, P75
[7]
Spencer H., 1969, VISIBLE WORD
[8]
Tinker M. A., 1965, BASES EFFECTIVE READ
[9]
WRIGHT P, 1979, INFORMATION DESIGN J, V1