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