edited by Lloyd G. Stevenson and Robert P. Multhauf
John Hopkins University Press, 1968
Buku Teks SO
Simon, Yves R.
University of Chicago Press, 1951
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Sri Zul Chairiyah
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 1984
UI - Skripsi Membership
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Routledge, 2015
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