@book{130465,
	title = {Change detection of selected topo-features using geographic information system : an investigation into the topographic map making process in Bangladesh / },
	publisher = {University of Dhaka, },
	year = {2015},
	address = {Dhaka : },
	note = {Thesis (Ph.D. )--Department of Geography and Environment, University of Dhaka, Session: 2009-2010

}
}