Wise, Kensall D., author
John Wiley & Sons, 1980
Buku Teks
Muhammad Suryanegara, author
Faculty of Engineering, Universitas Indonesia, 2012
Artikel Jurnal
Stewart, Hugh B.
Dow Jones-Irwin, 1989
Buku Teks
editor, James R. Bright
Prentice-Hall, 1968
Buku Teks
Ayres, Robert U., author
McGraw-Hill, 1969
Buku Teks