Hand, D.J., author
Chapman & Hall, 1987
Buku Teks
Universitas Indonesia, 2004
UI - Skripsi (Membership)
Stopher, Peter R., author
Lexington Books, 1979
Buku Teks
Stewart, Donald C., author
McGraw-Hill, 1981
Buku Teks
by Bruce L. Brown [and others]
John Wiley & Sons, 2012
Buku Teks