Sutan Takdir Alisjahbana, author
University of Malaya, 1965
Buku Teks
Hockett, Charles F.
Macmillan, 1958
Buku Teks
Suryadi, author
University of Indonesia, Faculty of Humanities, 2015
Artikel Jurnal
Sturtevant, Edgar H., author
Yale University Press, 1947
Buku Teks
Victoria A. Fromkin
Blackwell Publishers, 2001
Buku Teks