Mintzberg, Henry, author
Prentice-Hall, 1998
Buku Referensi
Sharma, O.P., 1953-, author
McGraw Hill Publishing Company, 1986
Buku Teks
Koolmees, Ria, author
Wolters-Noordhoff, 1990
Buku Teks
Mulisch, Harry van, author
De Bezige Bij, 1968
Buku Teks
Roemer, Astrid H., author
Arbeiderspers, 1997
Buku Teks