Mehren, Arthur Taylor von, author
Little, Brown, 1965
Buku Teks
Biondi Firmansyah, author
Universitas Indonesia, 2012
UI - Skripsi (Open)
Kartini Andri Wardhani, author
2016
UI - Skripsi (Membership)
Kutner, Peter B.
Greenwood Press , 1988
Buku Teks
Modden, David
New York, Twayne, 1964
Buku Teks