Frye, Richard N.
Allen & Unwin , 1960
Buku Teks
Farmer, Neil
John Wiley & Sons, 1996
Buku Teks
Farmer, Neil
John Wiley & Sons, 1996
Buku Teks
Stillman, Richard N.
Holt, Rinehart and Winston, 1962
Buku Teks
Cary, Richard
Twayne Publishers, 1967
Buku Teks