共 25 条
[1]
Abramson JH., 1974, SURVEY METHODS COMMU
[2]
Aubel J., 1989, Health Policy and Planning, V4, P244, DOI 10.1093/heapol/4.3.244
[5]
CHAMBERS R, 1983, RURAL DEV PUTTING LA
[6]
Del Walop Greco L, 1987, CMAJ, V136
[7]
DOUGLAS M, 1967, PURITY DANGER
[8]
ETIENNE P, 1966, CAH ETUD AFR, V23, P6
[9]
ETIENNE P, 1971, CAHIERS ORSTROM SCI, V8, P2