May, Tim
Social research: issues, methods and process
Open University Press, 2001
Buku Teks
Judd, Charles M.
Research methods in social relations
Methuen, 1991
Buku Teks
Sjoberg, Gideon
A methodology for social research
Harper & Row Publishers, 1968
Buku Teks
Babbie, Earl
The practice of social research
Cengage Learning, 2016
Buku Teks
May, Tim
Social research / Tim May
Open University Press, 2001
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