@book{6331,
	author = {Ng, Zone Fhong},
	title = {Evaluation of different semivariogram models in groundwater quality mapping using GIS-based simple kriging at Khorasan Razavi-Iran /},
	publisher = {UMP,},
	year = {2015},
	address = {Kuantan, Pahang :},
	note = {Faculty of Civil Engineering and Earth Resources},
	url = {http://ecollib.ump.edu.my/id/eprint/24914}
}