共 11 条
- [1] BASS G, 1979, ERIC ED172969 DOC RE
- [2] BROWNELL B, 1950, HUMAN COMMUNITY ITS
- [3] DUNNE F, 1979, ERIC ED172977 DOC RE
- [4] HENDERSON G, 1973, NATIONAL ASSESSMENT
- [5] MARTIN WK, 1979, ERIC RD172980 DOC RE
- [6] REEDER WG, 1951, FUNDAMENTALS PUBLIC, P399
- [7] Sher J. P., 1977, ED RURAL AM REASSESS
- [8] SHER JP, 1978, PHI DELTA KAPPAN, V60, P280
- [9] *US BUR CENS, 1976, CURR POP CONS INC
- [10] VINSON, RURAL STAKE