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Macmillan, 1988
Buku Teks
Adler, Hans A., author
Indiana University Press, 1971
Buku Teks
Abeyratne, Ruwantissa
Springer, 2012
eBooks
Sari Widya Sihwi, author
Fakultas Ilmu Komputer Universitas Indonesia, 2005
UI - Skripsi (Membership)
Nilsson, Fredrik
Taylor and Francis, 2008
Multimedia