Casey, Catherine
Routledge, 1995
Buku Teks
Davis, Keith, 1918-, author
McGraw-Hill, 1989
Buku Teks
Davis, Keith, 1918-, author
McGraw-Hill, 1989
Buku Teks
Newstrom, John W., author
Tata McGraw-Hill , 1997
Buku Teks
Newstrom, John W., author
McGraw-Hill, 2015
Buku Teks