White, Roderick, author
McGraw-Hill, 2000
Buku Teks
White, Roderick, author
McGraww-Hill , 2000
Buku Teks
by John S. Wright ... [et.al.]
McGraw-Hill, 1977
Buku Teks
Bovee, Courtland L., author
Richard D. Irwin, 1989
Buku Teks
Dyer, Gillian
Routledge, 1996
Buku Teks