Johnson, Kenneth D., author
The Benjamin, 1984
Buku Teks
Turney, Tully H., author
Mosby, 1973
Buku Teks
Simpson, George Gaylord, author
Harcourt Brace & World, 1969
Buku Teks
Bailey, Paul C.
International Textbook Company, 1969
Buku Teks
Mader, Sylvia S., author
McGraw-Hill , 1998
Buku Teks