Chia Siow Yue and Joseph L.H.Tan
ISEAS, 1997
Buku Teks
Fakultas Ilmu Komputer Universitas Indonesia, 2003
UI - Tesis (Membership)
Kemp, Geoffrey
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Buku Teks
edited by Carla P. Freeman
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Buku Teks
Evans, Christina
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Buku Teks