Kappraff, Jay, author
World Scientific, 2015
Buku Teks
Hart, William L., author
W.C. Heath, 1963
Buku Teks
Lathrop, Thomas G., author
Wadsworth, 1965
Buku Teks
staff of Research and Education Association, Max Fogiel, director
California Research and Education Association, 1987
Buku Teks
Rich, Barnett, author
McGraw-Hill, 1963
Buku Teks