Comeau, Raymond F.
Rinehart, and Winston, 1986
Buku Teks
Schoen, Sterling H
Richard D.Irwin, 1982
Buku Teks
Allen, Gemmy S.
South-Western Cengage Learning, 2013
Buku Teks
Bisflingloff, Raymond L.
Addison-Wesley, 1955
Buku Teks
French, Thomas Ewing, 1871-1944
McGraw - Hill , 1960
Buku Teks