Nehr, Lee Charles, author
International Textbook, 1967
Buku Teks
Nehr, Lee Charles, author
Intext Educational, 1972
Buku Teks
Levi, Maurice D., 1945-, author
McGraw-Hill, 1990
Buku Teks
Eitman, David K., author
Perason, 2001
Buku Teks
Eiteman, David K., author
Pearson, 2010
Buku Teks