Beneficial Management Institute, [Date of publication not identified]
Buku Teks
Thompson, Victor A., author
Alfred A. Knopf, 1969
Buku Teks
Salton, Gerard, author
McGraw-Hill, 1983
Buku Teks
Chowdhury, G.G., author
Facet Publishing , 2004, 2006
Buku Teks
Chowdhury, G.G., author
Library Association Publishing, 1999
Buku Teks