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Buku Teks
Kondratyev, V., author
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Buku Teks
Universitas Indonesia, 2001
UI - Skripsi (Membership)
edited by Sir David Bates and Benjamin Bederson
Academic Press, 1982
Buku Teks
Edited by Sir David Bates and Benjamin Bederson
Academic Press, 1981
Buku Teks