Verheijen, Jilis A.J., author
Department of Linguistics, 1986
Buku Teks
Ban Van Balen, author
Freeport Indonesia, 2005
Buku Teks
Artikel Jurnal
Monk, Kathryn A.
Periplus Editions, 1997
Buku Referensi
Indira Puteri Kinasih, author
Faculty of Engineering, Universitas Indonesia, 2014
Artikel Jurnal