Milner, Jean Claude
St. Martin’s Press, 1990
Buku Teks
Fromkin, Victoria A., author
Holt, Rinehart and Winston, 1981
Buku Teks
Hayakawa, S.I., author
Harcourt, Brace, 1940
Buku Teks
Yule, George, author
Cambridge Cambridge University , 2006
Buku Teks
Yule, George, author
Cambridge University Press, 2018
Buku Teks SO