TY  - BOOK
AU  - Pgrni Pussella 
TI  - Fundamental Theories of Spatial Data and Gis/ 
SN  - 978-955-644-110-9
U1  - 910.285 
PY  - 2021///
CY  - Belihuloya; 
PB  - Sabaragamuwa University of Sri Lanka, 
ER  -