Saso, Mary
Abt Books, 1982
Buku Teks
Basil Blackwell for the United Nations Industrial Development Organization, 1991
Buku Teks
Published by B. Blackwell for the United Nations Industrial Development Organization, 1990
Buku Teks
edited by Chalmers Johnson; [contributors, Eugene Bardach ... and others]
Calif ICS Press , 1984
Buku Teks
Vance, Stanley C.
Prentice-Hall, 1961
Buku Teks