Hogg, Robert V., author
Pearson Prentice-Hall, 2005
Buku Teks
Pollet, A., author
Gadjah Mada University Press, 1994
Buku Teks
Mood, Alexander McFarlane, 1913-, author
McGraw-Hill , 1974
Buku Teks
Erricker, B.C.
Hodder & Stoughton , 1981
Buku Teks
Freeman, Harold Adolph, author
Addison-Wesley, 1963
Buku Teks