TY - GEN AU - Oudman, K.M. TI - Handpump water supply in Hambantota district : survey and project sketch PY - 1991///] CY - [Enschede] PB - [University of Twente] KW - WATER SUPPLY KW - WELL PUMPS N1 - Installation and maintenance of tube wells in Hambantota; Improvememt of drinking water supply by tube wells ER -