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Buku Teks
Santos, David A., author
Jones & Bartlett Learning, 2011
Buku Teks
Grimaldi, Ralph, author
John Wiley & Sons, 2012
Buku Teks
Ias Sri Wahyuni, author
Universitas Indonesia, 2008
UI - Skripsi (Open)
Cohen, Daniel I. A.
John Wiley & Sons, 1978
Buku Teks