Artikel Jurnal
Lubis, Andri Maruli Tua, author
2004
Artikel Jurnal
Faller, Kathleen Coulborn, author
Columbia University Press, 1988
Buku Referensi
Bagong Suyanto, author
Airlangga University Press, 2002
Buku Teks
edited by Paul K. Kleinman
Cambridge University Press, 2015
Buku Teks