Howard, John A., author
Richard D. Irwin, 1962
Buku Teks
Alderson, Wroe, author
Richard D. Irwin, 1957
Buku Teks
McCarthy, E. Jerome, author
Irwin , 1978
Buku Teks
Stern, Mark E.
McGraw-Hill, 1966
Buku Teks
Cox, Eli P.
N.Y. Harper & Row c. , 1979
Buku Teks