Murdock, George Peter, author
The Free Press, 1965
Buku Teks
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The Athlone Press, 1970
Buku Teks
Brym, Robert J., author
Wadsworth and Cengage Learning, 2013
Buku Teks
Rania Ambarwati, author
2018
UI - Tugas Akhir
Sarumpaet, J.P. (Jan Pieter), author
Sahata, 1977
Buku Teks