Barrdell, Ross H.
Addison-Wesley, 1953
Buku Teks
Dugopolski, Mark, author
McGraw-Hill, 2000
Buku Teks
Drooyan, Irving, author
John Wiley and Sons, 1976
Buku Teks
Leithold, Louis, author
Macmillan, 1974
Buku Teks
Dolciani, Mary P., author
Houghton Miffiln, 1971
Buku Teks