Victoria A. Fromkin
Blackwell Publishers, 2001
Buku Teks
editors, S.P. Corder, E. Roulet
AIMAV, 1974
Buku Teks
edited by Anne E. Baker and Kees Hengeveld
Wiley-Blackweell, 2012
Buku Teks
edited by Archibald A. Hill
Voice of America, 1969
Buku Teks
Sturtevant, Edgar H.
Yale University Press, 1947
Buku Teks