Nasution, Harun, author
UI-Press, 1986
Buku Teks
Artikel Jurnal
Federspeil, Howard M, author
Cornell University, Modern Indonesia Priject, 1970
Buku Teks
Federspeil, Howard M, author
Equinox Publishing, 2009
Buku Teks
Depok Fakultas Sastra Universitas Indonesia 1994
UI - Laporan Penelitian