@book{102921,
	author = {Ma, Stefan. and National University of Singapore.},
	title = {Mathematical understanding of infectious disease dynamics},
	publisher = {World Scientific,},
	year = {c2009.},
	series = {Lecture notes series,},
	address = {New Jersey :},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10361854}
}