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Buku Teks
Amrullah Umar, author
2015
UI - Tesis (Membership)
Iver, Mc., author
Aksara Baru, 1980
Buku Teks
Sitepu, Rajin, author
Program Pascasarjana Universitas Indonesia, 2015
UI - Tesis (Membership)
Ball, Alan R., author
Macmillan, 1974
Buku Teks