Anderson, Wallace L., author
Holt, Rinehart and Winston, 1966
Buku Teks
Pei, Mario A., author
J.B. Lippincott, 1965
Buku Teks
Bloomfield, Leonard, author
Dewan Bahasa dan Pustaka, 1992
Buku Teks
Yule, George, author
Cambridge Cambridge University , 2006
Buku Teks
Johnson, Alexender Sryan, author
Dover Publications, 1968
Buku Teks