@book{5629,
	author = {Harper, David},
	title = {Qualitative research methods in mental health and psychotherapy :},
	publisher = {Wiley-Blackwell,},
	year = {c 2012.},
	address = {Oxford :},
	url = {https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/9781119973249?download=true}
}