by Jefferson P. Jones ... [and others]
South-Western Cengage Learning, 2012
Buku Teks
Rowe, Alan J., author
Macmillan, 1992
Buku Teks
Chambers, Raymond J., author
Sweet & Maxwell, 1953
Buku Teks
Artikel Jurnal
Boot, John C.G., author
McGraw-Hill Kogakusha, 1974
Buku Teks