Harris, Michael
The Dryden Press , 1997
Buku Teks
Harris, Elaine K, author
Pearson , 2013
Buku Teks
Bernardin, H. John, author
McGraw-Hil, 1993
Buku Teks
Bernardin, H. John, author
McGraw-Hill, 2013
Buku Teks
Bernardin, H. John, author
McGraw-Hill, 2003
Buku Teks