共 36 条
[1]
*APPL COMM TECHN, 1985, UNPUBL
[2]
BARLOW R, 1986, PHN8517 WORLD BANK P
[4]
BARNUM HN, 1986, PHN8611 WORLD BANK P
[5]
BLUMENFELD SN, 1983, EVALUATING POPULATIO
[6]
CARRUTHERS ID, 1977, WATER WASTES HLTH HO
[9]
CREESE AL, 1982, B WORLD HEALTH ORGAN, V60, P621
[10]
DRUMMOND MF, 1984, COST EFFECTIVE ANAL