McNeill, Patrick
Research methods
Routledge, 1990
 Buku Teks
White, Theresa L.
Research methods
Wadsworth and Cengage Learning, 2013
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Nichols, Michael P.
Family therapy concepts and methods
Pearson Education, 2014
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Research in family planning
edited by Clyde V. Kiser
Princeton University Press, 1964
 Buku Teks SO
Research in family planning
edited by Clyde V. Kiser
Princeton University Press, 1962
 Buku Teks SO