@book{18341,
	author = {Nel, J. P. and Mentornet (Pty) Ltd (Firm)},
	title = {The art and science of assessing student performance :},
	publisher = {Mentornet (Pty) Ltd.,},
	year = {2011.},
	address = {Centurion, South Africa :},
	edition = {1st ed.}
}