Mallery, Garrick, author
Mouton, 1972
Buku Teks
Chambers, Diane P., author
A Fireside Book, 1998
Buku Teks
Sianipar, Igor Lestin author
Fakultas Ilmu Komputer Universitas Indonesia, 2021
UI - Skripsi (Membership)
edited by Diane Brentari
Cambridge University Press, 2010
eBooks
Stokoe, William C., author
Mouton, 1972
Buku Teks