Health research :
Bhaduri, Aparna.
Health research : a community-based approach / Aparna Bhaduri, Marie Farrell. - New Delhi : WHO Regional Office for South-East Asia, 1981. - 123 p. - WHO regional publications. South-East Asia series no. 12 .
9290221127
Research--methods.
W 20.5
Health research : a community-based approach / Aparna Bhaduri, Marie Farrell. - New Delhi : WHO Regional Office for South-East Asia, 1981. - 123 p. - WHO regional publications. South-East Asia series no. 12 .
9290221127
Research--methods.
W 20.5