Fitri Astar
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2004
UI - Skripsi (Membership)
Pratt, Terrence W.
Prentice-Hall, 1975
Buku Teks
edited by John A.S Read edited by
Singapore University Press for SEAMEO Regional Language Centre, 1984
Buku Teks
Bickerton, Derek
University of Chicago Press, 1990
Buku Teks
Yalden, Jenice
Cambridge University Press, 1987
Buku Teks