TY  - BOOK
AU  - Sandhya, T. B.
TI  - Control of settlements in unsuitable lands: eith special reference to Ratnapura district
U1  - 910.285 
PY  - 2017///
KW  - Geographical information systems
N1  - Thesis submitted to the Faculty of Graduate Studies, University of Sri Jayewardenepura for the partical fulfilment of the Master Degree of Science in Geographic Information systems and Remote sensing 2017
ER  -