@book{223006,
	author = {Charles Wankel.},
	title = {Increasing student engagement and retention using online learning activities},
	publisher = {Emerald,},
	year = {2012.},
	series = {Cutting-edge technologies in higher education,},
	address = {Bingley, U.K. :},
	note = {Includes index.},
	url = {http://www.emeraldinsight.com/2044-9968/6 Part A}
}