edited by Henry C. Metcalf and L.F. Urwick
Harper & Brother , 1940
Buku Teks
Grohar-Murray, Mary Ellen
Appleton & Lange, 1997
Buku Teks
Kohnke, Mary F.
Mosby , 1982
Buku Teks
Routledge, 1998
Buku Teks
Scheier, Mary Ann
Sage Publications, 1981
Buku Teks