Bernkopt, Michael
Houghton Mifflin, 1975
Buku Teks
Craig, Robert T., author
Prentice-Hall, 1969
Buku Teks
Evans, Jacqueline P., author
Addison-Wesley, 1970
Buku Teks
Horner, Donald H., author
Rinehart, 1973
Buku Teks
Wylie, C. Ray, author
McGraw-Hill, 1982
Buku Teks