@book{6189,
	author = {Campoy, Ivy Christie C.},
	title = {The extent of the use of deep well as drinking water and its potability in Tubtubon, Sibulan, Negros Oriental /
     },
	publisher = {Foundation University,},
	year = {2011.},
	series = {CAS (Bio-Th)},
	address = {Dumaguete City :},
	note = {Undergraduate research study submitted to Foundation University.}
}