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California Libraries Unlimited, 2016
Buku Teks
Firnberg, David
George Allen and Unwin, 1973
Buku Teks
Albrecht, Leon K.
Macmillan, 1973
Buku Teks
Lucas, Henry C.
McGraw-Hill , 1997
Buku Teks
Anggi Aida Budaya
Fakultas Ilmu Komputer Universitas Indonesia, 2013
UI - Skripsi Membership