DePoy, Elizabeth
Introduction to research : understanding and applying multiple strategies
Mosby, 1998
 Buku Teks
Qualitative research in social work / edited, Edmund Sherman
Columbia University Press, 1994
 Buku Teks
Bowling, Ann
Research methods in health
Open University Press, 2006
 Buku Teks
Private troubles of public issues?: challenges for social work research
Walter Lorenz and Ian Shaw, editors
Routledge, Taylor & Francis Group, 2017
 Buku Teks
Research in human reproduction : Biennial report 1986-1987
edited by E. Diczfalusy, P.D. Griffin, J. Khanna
World Health Organization , 1988
 Buku Teks