Research methods in the social sciences
edited, Bridget Somekh, Cathy Lewin
Sage Publications , 2005
 Buku Teks
Leavitt, Fred
Research methods for behavioral scientists
C. Brown Publishers , 1991
 Buku Teks
Simon, Julian L.
Basic research methods in social sciences : the art of emperical investigation / Julian L. Simon
Random House, 1978
 Buku Teks
Bryman, Alan
Social research methods
Oxford University Press, 2016
 Buku Teks
Dooley, David
Social research methods, 4th edition
Prentice-Hall, 2001
 Buku Teks