Humble, John William, author
Erlangga, 1979
Buku Teks
Humble, John William, author
Erlangga, 1974
Buku Teks
Humble, John William, author
McGraw-Hill, 1968
Buku Teks
Humble, John William, author
Pan Books, 1972
Buku Teks
Drucker, Peter F. (Peter Ferdinand), 1909-2005, author
Gramedia, 1975
Buku Teks