edited by Ralph Fasold and Jeff Connor-Linton
Cambridge University Press, 2006
Buku Teks
Hazen, Kirk
Massachusetts : Wiley Blackwell, 2015
Buku Teks SO
Hughes, John P.
Random House, 1966
Buku Teks SO
Hughes, John P.
Random House, 1966
Buku Teks SO
Fromkin, Victoria A.
Holt, Rinehart and Winston, 1981
Buku Teks SO