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Prentice-Hall, 2006
Buku Teks
Jones, Gareth R., author
Pearson Education. Inc, 2004
Buku Teks
Jones, Gareth R., author
Pearson Prentice-Hall, 2013
Buku Teks
Dutta, Soumitra, author
McGraw-Hill, 1999
Buku Teks
Jelpa Priantalo, author
Universitas Indonesia, 2008
UI - Skripsi (Open)