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Buku Teks
Tyas Usada, author
Fakultas Teknik Universitas Indonesia, 2004
UI - Tesis Membership
Bennett, A. Gordon
Gloucester, Mass, 1980
Buku Teks
Feng, Guanglian
Jiaoyu Chubanshe, 2002
Buku Teks
Nuria Widyasari, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2002
UI - Tesis Membership