Harma Adi Santri
Universitas Indonesia, 2000
UI - Tugas Akhir
Lowe, Vincent
Times Books International, 1986
Buku Teks SO
Rini Darmastuti
Gaya Media, 2007
Buku Teks
Gilang Azalia
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2008
UI - Skripsi Open
edited by Mark R. Gould
[American Management Association, ], 2009
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