Fayol, Henri, author
Pitman, , 1967.
Buku Teks
Batty, J
The English Languange Book Society, 1979
Buku Teks
Batty, J
The English Languange Book Society, 1979
Buku Teks
Batty, J
The English Languange Book Society, 1979
Buku Teks
Bethel, Lawrence L., author
McGraw-Hill Kogakusha, 1971
Buku Teks