TY  - BOOK
AU  - Chandradasa, J.
TI  - A GIS model for improvement of operation and maintenance services of national water supply and drainage board
U1  - 910.285072 
PY  - 2014///
KW  - Geographic information system research . water
N1  - Thesis submitted to the University of Sri Jayawardanapura for award of the degree of master of science in geographic information and remote sensing
ER  -