Hoffman, Edward, author
McGraw-Hill, 2002
Buku Teks
Schnaid, Fernando, author
Taylor & Francis Group, 2009
Buku Teks
Kaplan, Robert M., author
Wadsworth and Cengage Learning, 2013
Buku Teks
Kaplan, Robert M., author
Wadsworth and Cengage Learning, 2013
Buku Teks
Freeman, Frank S.
Holt, Rinehart and Winston, 1960
Buku Teks