Terry, George Robert, author
Richard D. Irwin, 1974
Buku Teks
Terry, George Robert, author
Dow Jones-Irwin, 1982
Buku Teks
edited by C. Edward Weber and Gerald Peters
International Textbook Company, 1969
Buku Teks
Pascale, Richard Tanner
Pustaka Binaman Pressindo , 1992
Buku Teks
Johnson, Rossall James, 1917-, author
South-Western Pub., 1970
Buku Teks