Macy, Beverly, author
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Buku Teks
Blanke, Tobias, author
Chandos, 2014
eBooks
Fauzan Dzimar Rizqi, author
Fakultas Ilmu Komputer Universitas Indonesia, 2019
UI - Skripsi (Membership)
Shresthova, Sangita, author
Sage, 2011
Buku Teks
Connor, F.R., author
Edward Arnold, 1972
Buku Teks