Grbich, Carol
Qualitative research in health and introduction
Allen and Unwin, 1999
 Buku Teks
Handbook of health research methods: investigation, measurement and analysis
edited by Ann Bowling, Shah Ebrahim
Open University Press, 2007
 Buku Teks
Jacobsen, Kathyn
Introduction to health research methods: a practical guide
Jones & Bartlett Learning, 2012
 Buku Teks
Baumgartner, Ted A.
Conducting and reading research in health and human performance
McGraw-HIll, 2002
 Buku Teks
Baumgartner, Ted A.
Conducting and reading research in health and human performance
McGraw Hil , 2013
 Buku Teks