edited by David Linden
McGraw-Hill, 1984
Buku Referensi
Marsudi Wibowo
1985
UI - Skripsi Membership
Halderman, James D.
Pearson/Prentice Hall, 2006
Buku Teks
Ram B. Gupta, author
CRC Press, Taylor & Francis Group, 2009
Buku Teks
New York : Macmillan Library Reference, 1997,
Buku Referensi