TY  - BOOK
AU  - Weerapperuma, Thushara Darshana
TI  - A geoid undulation model for Sri Lanka
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  -