Universitas Indonesia, 2006
UI - Tesis (Open)
Hamilton, Lawrence S., author
Gadjah Mada University Press, 1988
Buku Teks
Yunanisa, author
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UI - Tesis (Open)
Whitmore, T.C., author
Clarendon Press, 1990
Buku Teks
Jacobs, Marius, author
Springer-Verlag, 1981
Buku Teks