Edwards, C. Henry (Charles Henry), 1937-, author
Prentice-Hall, 1998
Buku Teks
Smith, David A., author
D.C. Heath, 1996
Buku Teks
Seeley, Robert T., author
Scott Foresman and Company, 1968
Buku Teks
Borden, Robert S., author
North-Holland, 1983
Buku Teks
Small, Donald B., author
McGraw-Hill, 1990
Buku Teks