Ethridge, Marcus E.
Wadsworth and Cengage Learning, 2013
Buku Teks
Kesselman, Mark
Wadsworth and Cengage Learning, 2013
Buku Teks
Sederberg, Peter C.
Chandler & Sharp Publishers, 1977
Buku Teks
Curtis, Michael
Harper & Row, 1978
Buku Teks
Hagopain, Mark N.
Longman, 1978
Buku Teks