@book{3389,
	author = {Lwanga, Stephen Kaggwa and World Health Organization},
	title = {Teaching health statistics : },
	publisher = {WHO,},
	year = {1999.},
	address = {Geneva :},
	edition = {2nd edition},
	url = {https://apps.who.int/iris/bitstream/handle/10665/42079/9241545186_eng_part1.pdf?sequence=1&isAllowed=y}
}