Fayetteville : University of Arkansas
Majalah, Jurnal, Buletin
Restu Murtiningtyas, author
2010
UI - Skripsi (Open)
Fought, Carmen, author
Cambridge University Press, 2006
Buku Teks
Nababan, Melva Ratna Rulida, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1983
UI - Skripsi (Membership)
Tubingen : Laupp & Gobel
Majalah, Jurnal, Buletin