共 11 条
[1]
Brownell W. A, 1928, SUPPLEMENTARY ED MON, V35
[3]
BRUECKNER LJ, 1947, MAKE ARITHMETIC MEAN
[5]
DAWSON DT, 1952, THESIS STANFORD U
[6]
DEMAY AJ, 1935, CHILDHOOD ED, V11, P408
[7]
EINSTEIN A, 1944, PHILOS B RUSSELL, V5, P287
[8]
MCCLELLAN JA, 1896, PSYCHOL NUMBER, P61
[9]
MORTON RL, 1937, TEACHING ARITHMETIC, V1
[10]
SHOUSE JB, 1937, SCH SCI MATH, V37, P941