Babbie, Earl, author
The practice of social research
Cengage Learning, 2016
 Buku Teks
May, Tim, author
Social research / Tim May
Open University Press, 2001
 Buku Referensi
Lee, Raymond M., author
Unobtrusive methods in social research
Open University Press, 2000
 Buku Teks
Shipman, Marten
The Limitation of social research / Marten Shipman
Longman, 1988
 Buku Teks
Vaus, D.A.de
Surveys in social research / by D.A.de Vaus
University College London Press, 1996
 Buku Teks
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