Oberlin, Loriann Hoff, author
[American Management Association, ], 2004
eBooks
Jones, Richard, author
Chandos Publishing, 2006
Buku Teks
Lattimore, Dan, author
Morton , 1990
Buku Teks
Lattimore, Dan, author
Morton , 1990
Buku Teks
University of Malaya Library, 1997
Buku Teks