Barth, Lester George, author
Holt Rinehart and Winston, 1953
Buku Teks
Patten, Bradley M., author
McGraw-Hill, 1958
Buku Teks
Shumway, Waldo, author
John Wiley & Sons, 1954
Buku Teks
Rugh, Roberts, author
Burgess, 1961
Buku Teks
Pansky, Ben
Macmillan, 1982
Buku Teks